- Cleanroom and laboratory tables, benches, and workstations meet critical requirements for ISO 5 compatibility, chemical resistance, and ergonomics
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- General purpose and specialty refrigerators including ADA compliant, high performance and undercounter unitsRefrigerator Features Overview
A - Medical and Laboratory Refrigerators Storage Capacity
(back to chart)Laboratory and medical-grade refrigerators are manufactured in a broad range of sizes, from benchtop models smaller than 6 cubic feet to upright, double-door models larger than 40 cubic feet. Refrigerators smaller than 6 cubic feet are designed to fit on crowded work surfaces or under pharmacy counters to provide point-of-use cold storage for media, reagents, or vaccines.
High-capacity, upright refrigerators include microprocessor controls to maintain precise, uniform conditions throughout the storage area to prevent sample spoilage due to temperature fluctuations. Double-door and triple-door refrigerators isolate samples from different production batches to prevent cross-contamination and exposure during refrigerator access.
B - Special Application
(back to chart)B1 - ADA Compliant Lab Refrigerators
ADA Compliant Refrigerators are manufactured in accordance with the Americans with Disabilities Act (ADA) and fit underneath a 34” tall, ADA-compliant countertop. In addition, ADA-compliant models include positive-close hinges to prevent doors from remaining ajar. A front-mounted ventilation system ensures proper air circulation when the unit is installed in a crowded under-counter space.
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B2 - Blood Bank Refrigerators
Blood bank refrigerators are designed in accordance with AABB international standards for storage of samples for transfusions, cellular therapies, immunohematology references and platelet banking. AABB-compliant models include fully extendable and adjustable drawers designed to organize blood bags or Vacutainer tubes. To meet AABB blood storage guidelines, blood bank refrigerators maintain a set point of 4 degrees Celsius. An over-temperature alarm alerts all operators when the set point deviates from the user-selected parameters.
- Revco Blood Bank Refrigerators by Thermo Fisher Scientific
- Thermo Fisher TSX Series High-Performance Blood Bank Refrigerators
B3 - Chromatography Refrigerators
Chromatography refrigerators include internal duplex outlets and removable shelves to house and operate an HPLC system within the refrigerator. To prevent HPLC elution spoilage caused by temperature fluctuations, chromatography refrigerators include heat-free defrosting systems and forced air circulation to maintain temperature uniformity. Safety features, such as door locks or keypads, ensure controlled sample access.
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B4 - Explosion Proof Refrigerators
Explosion-proof refrigerators meet OSHA criteria for storage of volatile chemicals, powders, solvents and intermediates. Explosion-proof models include hard-wired electrical systems encased in conduit to prevent spark ignition or accidental detonation. Compressors include enclosed overloads, sensors and relays to prevent conflagrations.
B5 - Flammable Material Refrigerators
Flammable material refrigerators meet NFPA standards for storage of solvents and chemical powders. Magnetic door gaskets prevent hazardous fumes from escaping the refrigerator by ensuring a hermetically-sealed system. Additional security measures include door locks, audible alarms and fingerprint scanners.
PDF: Flammable Material Cabinet Features
Shop: Flammable Storage Refrigerators
B6 - Pass-Through Refrigerators
Pass-through, or dual-access, refrigerators are designed for installation between two non-contiguous spaces to support rapid sample transfer and prevent crowded foot traffic in hospital and research lab corridors.
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B7 - Pharmacy Refrigerators
Pharmacy refrigerators are designed for storage of IV infusions, vaccines, active pharmaceutical ingredients (APIs), and compounded sterile preparations. Glass doors support quick and easy identification of stored medicine. Adjustable and removable baskets and drawers provide flexible storage of IV bags, vials, and conical tubes.
Shop Pharmacy | High-Performance Refrigerators
C - Lab Refrigerator Sizes and Styles
(back to chart)C1 - Benchtop Refrigerators
Benchtop, small-footprint refrigerators are designed for use in crowded pharmacies or research labs with limited counter space. Benchtop models offer fewer than 6 cubic feet of storage capacity.
Shop General Purpose | Laboratory Refrigerators
C2 - Under-Counter Refrigerators
Undercounter refrigerators, including ADA-compliant models, fit underneath a standard 34” tall counter top to support cold chain solutions for vaccine administration, retail medicine and mobile sample storage. Front-mounted ventilation systems ensure proper air circulation for refrigerators installed in tight spaces.
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C3 - Upright Refrigerators
Upright, large-capacity refrigerators are designed for use in high-throughput research labs, pharmacies, and blood banks. Double-door and triple-door designs offer up to 60 cubic feet of storage space for IV bags, Vacutainer tubes, and conical vials. Energy Star-certified models consume 50% less energy than conventional refrigerators.
D - Lab Refrigerator Voltage
(back to chart)D1 - 120 Volt Lab Refrigerators
120-volt connections are suitable for standard residential power outlets in the US.
D2 - 240 Volt Refrigerators
240-volt connections require less current (amperage) and smaller conductors than appliances designed to operate at 120V.
E - Lab Refrigerator Door Style
Refrigerators with solid doors provide additional thermal insulation to prevent temperature fluctuations within the sample storage area. Solid doors, composed of epoxy-coated or stainless steel, also restrict viewing access of controlled medications. Glass doors support easy visual inspections of patient samples and internal storage conditions (including frost levels).
Shop Refrigerators Drawer Styles
Shop Lab Refrigerators and Freezer by Size
Where Can I Buy Laboratory Refrigerators Online?
Shop Lab Refrigerators at Laboratory-Equipment.com for carefully selected lines of laboratory instruments and equipment from sector-leading manufacturers such as Haier Biomedical, Marvel Scientific, Helmer Scientific, and Thermo Fisher. Configure accessories and customize your product design for almost any storage application including clinical, research or cleanroom environments. Many products are stocked and available for immediate shipment.
Laboratory-Equipment.com is a laboratory specialty division of Terra Universal. Terra Universal is the leading US manufacturer of critical environment equipment with a diversified product line including cleanrooms, desiccators, hoods, glove boxes, cleanroom furnishings and similar equipment.
Contact a laboratory equipment sales specialist for a same-day quote via web chat, email, or phone.
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- Hardwall cleanrooms use free-standing steel frames with cleanroom-grade panels. Stocked models ship next day!Hardwall Cleanroom Features Overview
A - Air Flow Design
(back to chart)A1 - Laminar Flow/Positive Pressure
Laminar flow air and positive pressure cleanroom design are ideal for non-hazardous, ultra-clean applications. Positive pressure mitigates dirt from entering the cleanroom when opening doors or pass-through chambers. Laminar airflow design ensures that air maintains a singular, uniform direction and velocity from intake to exhaust port. Terra's positive pressure cleanrooms include HEPA filtration systems capable of ISO Class 3 - ISO Class 8 air quality conditions. ULPA filtration units are available for the most sensitive ISO 3 - ISO 5 product applications including pharmaceutical compounding, semiconductor wafer processing, sterile packaging, and micro-nanofabrication.
A2 - Laminar Flow/Negative Pressure
A negative pressure laminar flow cleanroom is best suited for hazardous environments. Particularly, when the product is also sensitive or reactive to chemical, environmental, or particulate contamination. Negative pressure cleanrooms prevent the escape of toxic or hazardous air from the containment structure. Laminar airflow design ensures that air flows without interruption between intake and exhaust, which ensures that sterile or biologically sensitive samples remain pure and unadulterated. Terra's negative pressure cleanrooms provide capable and safe production environments for reducing operator hazards in high-risk applications such as USP 800 compounding, infectious disease research, and chemically intensive processes that require volatile chemical handling.
Terra manufactures and designs cleanrooms to BSL-1 and BSL-2 criteria. Some operations that fall under BSL-2 may require single-pass air that is filtered before being exhausted to the outside; others may allow recirculation of air and release of unfiltered exhaust air.
A3 - Ventilation/Negative Pressure
Negative pressure ventilation rooms are designed for handling chemicals that produce toxic, carcinogenic, or noxious vapors. Reverse-flow FFUs capture particles generated in localized cleanroom spaces to minimize contamination and ensure operator protection. Vapor removal FFUs eliminate trace amounts of VOCs from make-up air to prevent chemical fume contamination. Depending on the application, a containment room may require exit filtration: either HEPA/ULPA filters for particles and aerosols and/or carbon filters to remove chemical fumes.
A4 - Recirculation/Neutral Pressure
A neutral pressure cleanroom system is designed to ventilate environmental nuisances away from the operator; it is not intended to provide personnel or environmental protection against hazardous substances. In some cases, the environment does not require any specific ISO-rated classification, thus the primary purpose is to isolate particulates and aerosols that would otherwise congregate in adjacent areas or corridors. If it is safe to do so, a recirculating cleanroom allows filtration and reintroduction of room air and reduces heating and energy costs. Neutral pressure is the least energy-intensive when compared to positive and negative pressure designs. Recirculating negative pressure cleanrooms are commonly selected for purity testing, weighing, capsulizing, and packaging pharmaceutical powders.
A5 - Horizontal Flow/Positive Pressure
Horizontally configured cleanrooms are advantageous when vertical space and ceiling access is limited or extra tall ceiling requirements. Ceiling height is an important consideration for cleanroom design, especially for large objects found within aerospace, satellite, and telescope manufacturing environments. Horizontal flow cleanrooms introduce air from fan filter units mounted within sidewalls instead of traditional ceiling-mounted blowers. Air moves in parallel with the floor instead of perpendicularly. Air flows from a side-wall integrated with HEPA fan filter units and exits through a parallel wall with an integrated plenum for air return or exhaust. Wall-to-wall laminar airflow is advantageous when handling small parts and liquids which would otherwise be problematic for vertical floor cleanrooms with grated false-flooring.
B - Wall Panel Material
(back to chart)B1 - Stainless Steel
Stainless steel is a golden standard among cleanroom construction materials. Easy cleaning, favorable heat properties, and chemical resistance make stainless an ideal choice for biopharmaceutical and semiconductor environments. The smooth surface is easy to wipe down, resists biofilm buildup, and will not off-gas.
B2 - Powder-Coated Steel
Powder-coated steel is an economical choice that also provides favorable heat and chemical resistance for most applications. Terra’s signature white powder coat finish provides a high quality, durable barrier to protect against corrosion, plus a clean and attractive aesthetic. The advanced heat-fused formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.
B3 - Acrylic
Acrylic is widely used in cleanrooms and other critical environment applications. Its low initial cost, lightweight, transparency, and tensile strength makes it an attractive choice in many situations. Terra offers economical acrylic enclosures as a budget-friendly option. While acrylic is fairly durable against UV light and impact-resistant, the material is easily degraded by alcohols and solvents.
B4 - Static Dissipative PVC
Static-Dissipative PVC comes in rigid or flexible material for use on hardwall cleanroom panels or cleanroom curtains, dust covers, microenvironments, and other applications requiring a softer material. Non-dissipative plastics quickly accumulate surface charges that attract contaminants. Dissipative plastics prevent static build-up that attracts airborne particulate and lint fibers, which makes surfaces easier to wipe down. Static-dissipative PVC (SD-PVC) will not hold a static charge, offers wide chemical compatibility, and cleans easily. SD-PVC retains a surface resistivity of 10^6 - 10^8 ohms/square indefinitely unlike spray-on coatings that can wear off after a few years. SD-PVC also resists alcohol and most other sterilizing solutions, thus supporting standard disinfecting procedures and extending the life of your enclosure.
B5 - Polycarbonate
Polycarbonate is transparent with a slight gray tint and offers broad-spectrum chemical resistance, high impact resistance, and excellent thermal resistance (to 200°F / 93.3°C). Polycarbonate is stronger and cracks less easily than both acrylic (15x stronger) and glass (250x stronger).
B6 - Polypropylene
Polypropylene is an opaque thermoplastic with excellent chemical resistance against acids and solvents.
B7 - Chlorinated PVC (C-PVC)
Cleanroom chlorinated polyvinyl chloride (C-PVC) wall panels are tested and certified to meet ISO 5 – 8 cleanliness standards. These compressed panels have excellent chemical resistance and prevent particle emission and microbial growth. Their unique solvent-free silicone adhesive allows installation on wallboard substrate creating a strong, rigid structure when mounted to Terra’s steel frame. Welded seams are trim-free, without cracks or gaps. Optional PVC coving is available for floors and corners to further simplify cleaning.
B8 - Fiberglass Reinforced Plastic (FRP)
Class A and C FRP panels feature a unique non-outgassing advanced polymer adhesive for installation on drywall or other substrates. A specialized seam sealant provides trim-free seams that expand and contract to accommodate temperature-induced dimensional changes without creating cracks or gaps. A patented surfacing technology seals panels uniformly to enhance durability and prevent particle emission and microbial growth.
B9 - Tempered Glass
Tempered cleanroom glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempered glass is not only impact resistance, but also ideal for its high visual clarity and aesthetic. Glass wall cleanrooms allow easy monitoring of operators and processes within the cleanroom and tend to appear larger and more spacious. Tempered glass is non-outgassing and chemical-resistant, making it ideal for frequent decontamination.
B10 - Vinyl Curtains
Cleanroom vinyl curtains are lightweight and rapidly installable for creating room partitions, isolating equipment and processes, or mobile isolation when configured with wheel casters. Curtain strips are available in either 4' -wide softwall panels made of blur-free 40 mil vinyl or 8” -wide strip curtains made of blur-free 60 mil vinyl. Static-Dissipative PVC vinyl includes built-in static inhibitors and is recommended for all cleanrooms to minimize particle cling. A T-Grid Mounting System allows suspension of curtains or strip shields from Terra's cleanroom ceiling grid.
B11 - Modesty Panels
Modesty panels provide the combined benefits of natural light while also maintaining a degree of privacy. These panels are ideal for multi-level cleanroom mezzanines that require additional office space or unclassified storage. Modesty panels include an opaque lower panel and upper panel of transparent glass or cleanroom-rated plastic such as polycarbonate or static dissipative PVC. A solid lower panel provides a balance of privacy while the transparent window allows the introduction of natural light and tends to make the space appear larger and less constricted.
B12 - Insulated Panels
A double-wall, insulated wall panel promotes a stable environment for long-term sample storage, cell cultivation, or high-volume process equipment. Terra's double-wall insulated panels are adaptable to the customer’s temperature range specifications and application requirements including cold rooms, incubation, and sound isolation. Double-wall construction with 1”-thick polyurethane insulation enhances cleanroom heating/cooling efficiency and thermal stability. Rigid foam insulation paired with a climate control system provides better temperature stability for applications that require raised flooring for true laminar flow. Double-wall structure allows air to circulate through the inter-wall plenum which further increases filtration and A/C efficiency in high-performance applications.
B13 - Center-Mount Panels With Mirror-Finish Steel Brackets
Most of Terra’s competitors affix the cleanroom wall panels directly to the frame (mounted on the internal or external side of the frame. With this design, replacing cleanroom wall panels is a cumbersome task and requires cleanroom shutdown. If the panels are affixed externally to the frame, installing coved flooring is virtually impossible and the customers are tasked with sterilizing the frame along with all of its crevices. If the panels are mounted internally, the customer loses precious cleanroom space. If the flooring is coved to the internal panels, the customer loses even more space. Terra’s center-mount panel design alleviates these issues.
C - Frame Material
(back to chart)C1 - Stainless Steel (<20% or -5" Hg)
Unlike most competitors who offer only aluminum extruded frames, Terra Universal provides steel and stainless steel frame materials that maintain structural integrity far longer than aluminum under fire conditions. Terra Universal’s BioSafe stainless steel cleanrooms may be ideal for sterile applications since they are not affected by harsh wash-down chemicals.
Double-Wall Steel Panels
Double-wall panels, available in 304/316 stainless or powder-coated steel, create a freestanding structure for affixing a ceiling grid. Each panel consists of an inside and outside portion, which are joined by a compression ball-and-socket fastener. Once joined, the walls can be detached by means of magnetic-grip handles (not included). The hollow space created by these panels provides a convenient installation zone for electrical conduit, gas, and vacuum service line enhancing systems, cleanliness, and appearance. In controlled temperature applications, this void may be insulated to optimize thermal stability and reduce energy costs.All Steel BioSafe Cleanrooms
Terra’s all-steel BioSafe® Modular Cleanroom creates a rigid, self-supporting structure without a separate frame or external bracing, a key advantage over other designs that require special permitting and contractor installation.316L Stainless steel contains the same corrosion-resistant materials as 316 but includes the added benefit of lower carbon content—eliminating the opportunity for excessive metallic contamination and making cracking less likely. Both 316 and 316L can withstand chlorides and chlorinated solutions, such as Spor-Klenz® and Isopropyl Acetate.
C2 - Powder-Coated Steel
Terra's powder-coated steel cleanroom frames support free-standing softwall spans of up to 20 feet without internal posts or ceiling suspension cables. If necessary, reinforcements are provided for high-clearance, long-span rooms. Reinforcements ensure stability and additional seismic requirements for particle-sensitive samples and analytical instruments.
- Excellent for cleanroom applications
- Good weather resistance
- Good mechanical properties
- Good chemical resistance
- Excellent UV protection
- Good storage stability
- Underwriter Laboratories recognized component (UL approved)
D – Standard Components
(back to chart)D1 - Filter Fan Units (FFUs)
Terra’s WhisperFlow® FFU’s feature UL-listed components and built-in baffles that quietly produce uniform laminar airflow across the face of the filter. UL-listed products meet the highest manufacturing standards and reduce the risk of damage, injuries, and electrical hazards.
Smart® Fan Filter Units with EC Motors provide annual energy savings of nearly $500 per fan filter unit. The control card features industry-standard MODBUS® networking, precision speed control (1-100%), and closed-loop control capability for air pressure, airflow, and particle count sensors.
Terra fan filter unit housings are configurable for room-side replaceable, explosion-proof, heated, and low-profile configurations. The same high performance fan filter units are found throughout Terra products including cleanrooms, laminar flow hoods, and containment systems. Filter fan units are stocked, pre-tested, crated, and ready for immediate shipment from Terra's distribution centers.
- Explosion-proof fan filter units are rated for hazardous areas and reduce fire or explosion risks
- Reverse flow fan filters evacuate contaminated air.
- Portable HEPA fan filter units allow rapid deployment and filtration of stagnant air.
D2 - LED Lights
Terra's LED flat panel troffer lights include dimmable brightness and 5 selectable color temperatures to achieve the perfect balance of light including 3000K / 3500K / 4000K / 5000K / 6500K. When paired with Terra's cleanroom control panels, lighting control is available from a centralized location out of the cleanroom. Terra's power distribution modules (PDMs) allow connection of lighting and fan filter via quick connections that do not require hardwiring. LED panels are available with integrated backup batteries that allow for up to an hour of continued visibility in the case of a power failure.
D3 - Control Panels
Cleanroom Control Panels centralize control of cleanroom lighting, power, fan speed, and assignable groups.
Standard Control Panels provide central control and connection of lights and filters. A Fan Filter Replacement Alarm provides a reliable, quantitative method for determining when a HEPA filter requires replacement. An optional Night Service Switch drops all Fan/Filter Units (FFUs) into a low-energy mode for nights and weekends.
Smart® Control Panels connect to EC FFUs for individual or grouped fan control and remote monitoring of room differential pressure, particle counts, temperature, and humidity. Robust systems offer advanced control for up to 200 fan filter units and 16 independently controlled rooms.
D4 - Power Distribution Modules (PDMs)
PDMs allow the addition of ceiling fan/filter units and lights to meet any cleanliness requirement or to upgrade ISO levels or lighting levels after installation. Terra’s PDMs use 3-pin or 4-pin quick connect fittings to power all FFUs, and lights, no matter the cleanroom size. Hardwiring is only required to connect the Primary, Secondary, Booster, and Duplex PDM modules. Because no additional hard wiring is required to connect and disconnect power to additional lights and fan filters, contractors save time, money, and resources during cleanroom installation, expansion, or modification.D5 - Doors
Standard doors with aluminum frames are available in either single or double door configurations and a choice of acrylic or static-dissipative PVC panels.
Swing doors are either Left Hand Reverse (LHR) or Right Hand Reverse (RHR) when viewed from outside the cleanroom (dirty side) to minimize particulate impact on the cleanroom when the door opens.
Cleanroom doors on prehung frames install easily for negative or positive pressure cleanrooms. Choose from swing-out or sliding doors that are UL leak-rated and suitable for ISO 4 - ISO 8 environments.
BioSafe® 316L stainless steel doors have continuous seam welds for sterile and aseptic environments. Terra's BioSafe products forgo cracks and crevices known to harbor particles and microbes. Dual-pane, flush-mount windows minimize horizontal surfaces and crevices where contaminants collect.
Fire-rated doors include insulated double stainless steel walls, wire-free construction, and a fire-rated glass-ceramic viewing window that is impact resistant.
D6 - Windows
Terra's cleanroom windows are compatible with any cleanroom wall material or thickness and designed for compliance within healthcare, pharmaceutical, and GMP manufacturing applications. These easy-to-clean, hygienic windows enhance the visibility of operations and foot traffic without jeopardizing GMP design standards.
Flush-mount cleanroom windows easily and seamlessly install into modular and stick-built cleanrooms and labs. Developed specifically for aseptic requirements in bio-pharmaceutical and cGMP cleanrooms, these hygienic cleanroom windows bring more light and visibility to your workspace without compromising cleanliness requirements. Choose from easy-to-clean framed or frameless stainless steel designs. Fire-rated cleanroom window designs meet building code requirements to protect your employees, operations, and business.
D7 - Filter Replacement Alarm System
Fan filter replacement alarms provide automatic replacement alerts to avoid costly and unexpected operational interruptions. Alarms trigger an audible buzzer when differential pressure reaches an adjustable setpoint. Alarms provide a reliable method for establishing fan filter replacement intervals while also reducing the risk of electrical/fire hazards caused by overworked motors pushing against overloaded HEPA filters.
BioSafe® cleanroom windows include compression fittings for fast, hardware-free installation. Framed and frameless designs are compliant with BSL-rated rooms and ISO 4-compliant spaces.
Related: Cleanroom Window Types and Flushmount Advantages
E – Compatible Cleanroom Class
(back to chart)ISO 14644-1 is a document issued by the International Standards Organization which classifies a controlled environment into six categories of air cleanliness. ISO 14644-1 supersedes previous standards for cleanroom testing and validation such as Federal Standard 209E (FS209E). While references to FS209E are still used, ISO 14644-1 is internationally endorsed for testing and validating a cleanroom that meets FDA, USP, GMP, CGMP, or EU standards. An ISO 14644-1 cleanroom is classified on a scale between ISO Class 3 to ISO Class 8. The ISO class for a particular room is determined for the entire room and not for individual components or materials.
Terra hardwall and BioSafe cleanrooms are configurable for the cleanest ISO 3 - 5 applications including wafer fabrication, microelectronics, nanotechnology, and sterile or biologically sensitive processes. Most industries fall within ISO 6 - ISO 8 cleanroom requirements including medical devices, general manufacturing, electronics assembly, food/beverage, and particulate or aerosol enclosures. Terra's modular hardwall configurations are available in steel, stainless steel, and plastic panels for ISO 5 - ISO 8 spaces with precise particulate and climate control requirements. ValuLine Softwall Modular Cleanrooms configurations are economical for less intensive or non-classified environments and available with preconfigured and ready-to-ship options.
F – Air Conditioning
(back to chart)F1 - Temperature
Terra will work with a local HVAC contractor to provide an air control system that meets your cooling requirements and local codes. If the existing HVAC system cannot be used, Terra will provide the ducting and recirculation system that routes exhaust air to the compressor and delivers cool air to the ceiling FFUs in ample volume to maintain the desired air velocity inside the enclosure. Additional Cleanroom A/C Module provides economical cooling in facilities without adequate HVAC. Based on the cleanroom size, desired temperature, and heat dissipated inside the cleanroom, Terra will configure the appropriate number of AC units required for the space. With larger cleanrooms, Terra works with a local contractor to install a split A/C system, which moves the heat-generating compressor outside the building to reduce heat loads inside the facility.
F2 - Humidification
Terra’s Ultrasonic Humidifier is designed to be a turnkey system as an addition to your cleanroom. Simply place and rest the unit on an open 2’x4’ ceiling grid from above the cleanroom. No fasteners or gaskets are required to secure the unit in place. The system uses five ultrasonic transducers to generate mist and operates on only 150W, less power than conventional steam canister humidifiers. Humidification and dehumidification modules are controlled by a humidistat independent of the thermostat. The Ultrasonic Humidifier comes with a remote control to turn on the unit and set your desired RH levels (up to 100% RH).
F3 - Dehumidification
Cleanroom Dehumidification Modules use silica gel desiccant housed in a rotor to produce dry airflow.
F4 - AC Module Interface
Air Conditioning Modules provide economical cooling in facilities without adequate HVAC. Air Conditioning Modules incorporate dehumidification circuitry and are controlled by a humidistat independent of the thermostat. The unit includes a powder-coated steel air distribution plenum mounted to the external cleanroom wall, which provides conditioned air to up to six FFUs.
Terra can provide custom HVAC modules that operate similarly to an environmental test chamber, adjusting the supply air's temperature and humidity to maintain specific conditions within tight tolerances. This type of system is particularly useful when the environment immediately outside of the cleanroom experiences significant fluctuations in temperature or relative humidity.
G – Environmental Monitoring
(back to chart)Smart® Fan Filter Power & Control Panels centralize control over assignable groups or specific targets when conducting cleanroom pressure-balancing, troubleshooting, or maintenance. An upgraded Smart Control System allows additional environmental sensors and FFU control to meet critical performance/monitoring requirements. A control panel assembly includes power controls for the Fan/Filter Units, lights, and is configurable for other integrations including temperature, humidity, particle counts, differential pressure, and air velocity sensors.
G1 - Temperature
Terra's thermometers, hygrometers, and data recording instruments help monitor, control, and document environmental conditions in your cleanroom or laboratory. Temperature, dew point, and humidity monitoring are essential for products with known sensitivities to heat, environmental drift, static, or trace moisture. Terra Universal provides decades of field-proven expertise and a wide selection of thermometers and sensors for complete room monitoring.
G2 - Humidity
Many labs and cleanrooms choose to maintain a 30% RH level. Anything more than that may cause other issues, such as damage to moisture-sensitive materials. Every Terra cleanroom is available with integrated sensors and monitoring equipment for measuring and recording relative humidity values within the cleanroom.
G3 - Differential Pressure
Magnehelic® Differential Pressure Gauges monitor room-to-room pressure or filter back-pressure. Digital and alarm models are available for activating alerts when pressures fall out of specification.
G4 - Particle Counting
Particle counters are available as standalone handheld units for spot-checking and validation, or as built-in modules for remote monitoring after connection to a centralized building management system (BMS) such as MODBUS.
H – Ventilation & Contaminate Control
(back to chart)H1 - False Ceiling Exhaust
False Ceiling Exhaust: Use of a plenum mounted above the drop ceiling to divert air away from the work area. A false ceiling exhaust includes an array of ceiling-mounted reverse flow fan filter units. Reverse fan filter designs remove air from the work environment and port to an outside environment or dedicated HVAC exhaust. Reverse flow fan filter units mount to the ceiling grid and are available with integrated blowers, or with motorless designs for connection to a remote HVAC blower.
H2 - False Floor Exhaust (Complete Laminarity)
False Floor Exhaust: Raised grated or air-permeable flooring with bottom plenum underneath to achieve full airflow laminarity. False floor exhaust systems, also known as pass through floor exhausts, feature a grated flooring that provides unidirectional airflow and passage of contaminated air. Raised flooring is common for semiconductor applications and ideal for cleanroom classifications below ISO 5 to optimize vertical laminar flow.
p - Floor-Mounted Exhaust
Floor-Mounted Exhausts use side-wall plenums and floor-mounted air handlers to divert air away from the work area. The plenum is mounted directly to the frame and connects to ceiling ducts that exhaust air from the negative pressure room. Floor mount exhausts include internal airflow baffles to smooth corner flow and a pass vent at the bottom with an optional fixed position damper. Containment (negative pressure) rooms require customer furnished in-house exhaust systems capable of pulling the air volume required to create adequate negative pressure
H4 - Biosafety Levels I & II
Biosafety Level 1 is specified as work with well-characterized agents that are known to cause disease in healthy, non-immunocompromised adults. Special containment practices and devices are generally not required, but institutional laboratory practices must be implemented to reduce risk to laboratory personnel.
Biosafety Level 2 is specified as work that poses moderate hazards to personnel and the environment. Research or diagnostic activities that are administered with pathogenic bacteria, such as Staphylococcus aureus or Salmonella, fall into this category. This Biosafety Level builds upon Biosafety Level 1; all of the precautions and practices spelled out in Biosafety Level 1 must be followed in addition to those found in Biosafety Level 2. Special containment practices and devices are generally required to mitigate risk to laboratory personnel.
I – Upgraded Features
(back to chart)I1 - Ion Bars
Ionization bars neutralize electrostatic charges, a common requirement for mixing, packaging, or high-speed assembly lines. Static ionizing bars remove errant charges and have special importance for products with insulative properties.
I2 - Air Curtains
Air curtains produce a jetstream of ULPA Class 10 micro-filtered air at the entry and exit points of a controlled environment. Air curtains are ideal when doors are frequently opened or for doorless entryways. Operating modes include either motion sensor activation with adjustable delay or continuous operation.
I3 - Uninterrupted Power Supply
An uninterrupted power supply (UPS) is only used to maintain power in the cleanroom for a brief time during an unanticipated power outage. A UPS guarantees uninterrupted visibility inside a cleanroom in the event of power loss and provides power for one light (LED or fluorescent) for one hour.
I4 - Cleanroom Emergency Lights
The cleanroom emergency light is an LED light with a backup battery that will remain on during a power outage so employees can see well enough to shut down operations, secure any sensitive products, and evacuate safely in the case that power cannot be immediately restored.
The LED light has a red/green indicator to inform employees after power has returned and the cleanroom is safe to re-enter. When receiving power, the light both operates normally and charges the emergency battery.
I5 - Germicidal UV Lights
UV sanitizing modules affix to the cleanroom ceiling grid to neutralize bacteria, viruses, and mold spores. UV light is particularly effective when targeting resistant bacteria, mold/fungal spores, and gram-negative microbes. The UV-C Germicidal Lamps install on a cleanroom ceiling grid for line-of-sight room disinfection. A safety occupancy sensor switches off the UVC lighting to prevent radiation exposure when occupied.
I6 - Fire Detection System
Terra provides fire detection and suppression systems ideal for wet benches, exhaust fume lines, and locations involving volatile chemicals. Terra cleanrooms support traditional sprinkler and heat sensor configurations or CO2-based suppression systems. The FS System 7 is an integrated fire detection and CO2 suppression system that includes electro-optical sensors for detecting any type of hydrocarbon or non-hydrocarbon fire, even through gas or vapor. A dual-stage alarm triggers an early warning for fires too small to be sensed by overhead sprinklers. An intelligent multi-stage response system prevents the damaging effects of fire suppression in the case that a small fire self-extinguishes or is suppressed rapidly. Terra engineers work with you to determine the fire suppression system appropriate for your requirements and local fire codes.
I7 - Fingerprint Scanner
Biometric fingerprint scanners prevent unauthorized access via shared keys or passwords while also providing data logging capability. An integrated proximity card reader enables two-factor authentication.
I8 - Iris Scanner
Fully automated iris scanner for secure, hands-free access (includes data logging and optional secondary keycard reader).
I9 - Keycard Reader
Keycard readers provide a durable and economical method for maintaining secured keycard access within a cleanroom facility. The low-profile device reads cards up to 3" away and integrates with access control software for data logging and remote monitoring.
I10 - Pass Through
General-Use Pass-Through Chambers are an economical choice for non-sterile items with a low risk of cross-contamination potential including samples, fluids, tools, packaging, or documents.
ValuLine™ Pass-Through Chambers are configurable with economical black acrylic, chemical resistance polypropylene, or stainless steel for unmatched cleanliness and durability within cleanrooms.
BioSafe® Pass-Through chambers with continuous seam welds eliminate hard-to-clean cracks and crevices that can harbor particles and germs. CleanSeam™ design conceals the door interlock mechanism behind the chamber’s wall for a completely unobstructed, easy-to-clean chamber interior.
I11 - Talk Through
Communication and vocal clarity are critical for successful outcomes within cleanrooms, laboratory, and hospital isolation environments. Mechanical and electronic talkthroughs allow easier communication between internal partitions or outside areas of the cleanroom. Both the mechanical and electronic talk throughs include cleanroom-grade components and are easy to mount in either a stick-built cleanroom wall or Terra hardwall modular cleanroom.
I12 - Interlocking Doors
Interlocking doors are common for passthrough chambers and air showers. The interlock prevents doors on either side of the enclosure from opening at the same time. Single side access helps to maintain airflow cascades between rooms of differing pressure and limits room pressure loss after opening and closing of doors.
J – Services
(back to chart)J1 - Cleanroom Installation
Terra Universal is one of few cleanroom manufacturers to provide in-house engineering, in-house design services, and in-house component manufacturing from a single source. While most contractors rely on external engineering teams for drafting and floorplanning, Terra reduces layers of communications and simplifies facility planning and construction to a single point of contact. If requirements change, our modular design allows you to add filters, lighting, ionization, or additional floor space—all at a fraction of the cost you'd face with other systems.
J2 - White Glove Delivery
Terra Universal provides specialized freight service on a per-project basis. Extended delivery options include inside delivery and delivery after business hours. Terra is committed to ensuring the timely and safe delivery of your product. Terra provides product on-site placement and assembly services for facilities that lack the necessary equipment or expertise during the installation and startup process. Our shipment consolidation services provide our customers extended control over shipment and delivery dates by streamlining pickup and delivery times. In-transit freight consolidation ensures pickup and shipment of items at prespecified times. Items are transported from the factory as needed or held at a consolidation terminal for later delivery to the end destination within a prespecified time window.
J3 - FasTrak Expedited Production
Terra's FasTrak limited guarantee is to ship on or before the date specified or to refund up to 100% of FasTrak charges on the client's approved request. This guarantee does NOT cover direct, special, consequential, or other damages and is strictly limited to 100% of the amount paid for FasTrak service.
J4 - Cleanroom Certification
Terra Universal is the leading expert in the design and fabrication of critical environment applications. Terra offers end-to-end certification and testing services for cleanrooms, hoods, glove box isolators, biosafety cabinets, and lab equipment. Services include HEPA leak testing, airflow velocity, airborne particle counting, room pressurization, airflow visualization, ASHRAE 110, and volatile organic compound testing.
J5 - Cleanroom Equipment Validation (IQ/OQ/PQ)
Terra Universal provides comprehensive, turnkey equipment validation packages on a per-project basis. Contact your Terra Universal product specialist to discuss project-specific requirements with our validation engineering team.
Services include:
- Installation Qualification
- Olierational Qualification
- lierformance Qualification
- Construction Qualification
- Factory Accelitance Testing
- Site Accelitance Testing
- User Requirement Sliecification
- Statement of Work
- Feasibility Study
J6 - Decontamination and Cleaning
The Terra Universal network includes trusted vendors for deep micro-cleaning after commissioning and regular cleaning services on a monthly, weekly, or as-needed basis. Through our critical environment cleaning professionals and the use of innovative technology, we make certain your cleanroom environment meets or exceeds the industry’s highest regulations for contamination control, maintenance and safety. We offer comprehensive decontamination service packages for a multiverse of cleanroom applications, gown rooms, vivariums, biomedical facilities, laboratories, and cold/dry rooms.
J7 - USP <797> Consultation
Terra Universal provides uncompromising informational and consultative support for USP 797 and USP 800 compliance. If applicable, Terra will offer a 60-minute phone call with staff compounding pharmacist (CPHA Policy Committee member) Dr. Chris Munoz. Terra USP compounding suites include (as requested) custom cleanroom drawings outlining dimensions, layout, and placement of HEPA filters.
Due to high demand for this consultation and the scope of service provided, Terra must require an up-front consultation fee that will be applied to the purchase of a Terra USP cleanroom; however, even those who do not purchase from Terra will receive cost-saving guidance far exceeding the price of this bundle.
J8 - Seismic Structural Analysis
Terra’s modular cleanrooms are designed with seismic safety in mind. Rigid steel frames and ceiling grids are designed with sufficient factors of safety to provide vertical and lateral strength recommended by professional engineers. Both hardwall and softwall designs can be installed to adhere to local seismic codes. Optional seismic and structural calculations can be drafted and stamped by a licensed PE to help meet municipal permitting requirements.
71 Products
Close71 Products
- Sturdy, adjustable shelving solutions from Terra, Metro and Eagle keep your work space clean and organized; select models are corrosion resistant and have antimicrobial coatings
1343 Products
Close1343 Products
- Reusable cleanroom garments are noncontaminating, even after repeated laundering, and resist snagging; select lint-free polyester, super dense polyester and static-control carbon grid
124 Products
Close124 Products
- Softwall cleanrooms use free-standing steel frames with cleanroom-grade vinyl panels. Stocked models ship next day!Softwall Cleanroom Features Overview
A - Air Flow Design
(back to chart)A1 - Laminar Flow/Positive Pressure
Laminar flow air and positive pressure cleanroom design are ideal for non-hazardous, ultra-clean applications. Positive pressure mitigates dirt from entering the cleanroom when opening doors or pass-through chambers. Laminar airflow design ensures that air maintains a singular, uniform direction and velocity from intake to exhaust port. Terra's positive pressure cleanrooms include HEPA filtration systems capable of ISO Class 3 - ISO Class 8 air quality conditions. ULPA filtration units are available for the most sensitive ISO 3 - ISO 5 product applications including pharmaceutical compounding, semiconductor wafer processing, sterile packaging, and micro-nanofabrication.
A2 - Laminar Flow/Negative Pressure
A negative pressure laminar flow cleanroom is best suited for hazardous environments. Particularly, when the product is also sensitive or reactive to chemical, environmental, or particulate contamination. Negative pressure cleanrooms prevent the escape of toxic or hazardous air from the containment structure. Laminar airflow design ensures that air flows without interruption between intake and exhaust, which ensures that sterile or biologically sensitive samples remain pure and unadulterated. Terra's negative pressure cleanrooms provide capable and safe production environments for reducing operator hazards in high-risk applications such as USP 800 compounding, infectious disease research, and chemically intensive processes that require volatile chemical handling.
Terra manufactures and designs cleanrooms to BSL-1 and BSL-2 criteria. Some operations that fall under BSL-2 may require single-pass air that is filtered before being exhausted to the outside; others may allow recirculation of air and release of unfiltered exhaust air.
A3 - Ventilation/Negative Pressure
Negative pressure ventilation rooms are designed for handling chemicals that produce toxic, carcinogenic, or noxious vapors. Reverse-flow FFUs capture particles generated in localized cleanroom spaces to minimize contamination and ensure operator protection. Vapor removal FFUs eliminate trace amounts of VOCs from make-up air to prevent chemical fume contamination. Depending on the application, a containment room may require exit filtration: either HEPA/ULPA filters for particles and aerosols and/or carbon filters to remove chemical fumes.
A4 - Recirculation/Neutral Pressure
A neutral pressure cleanroom system is designed to ventilate environmental nuisances away from the operator; it is not intended to provide personnel or environmental protection against hazardous substances. In some cases, the environment does not require any specific ISO-rated classification, thus the primary purpose is to isolate particulates and aerosols that would otherwise congregate in adjacent areas or corridors. If it is safe to do so, a recirculating cleanroom allows filtration and reintroduction of room air and reduces heating and energy costs. Neutral pressure is the least energy-intensive when compared to positive and negative pressure designs. Recirculating negative pressure cleanrooms are commonly selected for purity testing, weighing, capsulizing, and packaging pharmaceutical powders.
A5 - Horizontal Flow/Positive Pressure
Horizontally configured cleanrooms are advantageous when vertical space and ceiling access is limited or extra tall ceiling requirements. Ceiling height is an important consideration for cleanroom design, especially for large objects found within aerospace, satellite, and telescope manufacturing environments. Horizontal flow cleanrooms introduce air from fan filter units mounted within sidewalls instead of traditional ceiling-mounted blowers. Air moves in parallel with the floor instead of perpendicularly. Air flows from a side-wall integrated with HEPA fan filter units and exits through a parallel wall with an integrated plenum for air return or exhaust. Wall-to-wall laminar airflow is advantageous when handling small parts and liquids which would otherwise be problematic for vertical floor cleanrooms with grated false-flooring.
B - Wall Panel Material
(back to chart)B1 - Stainless Steel
Stainless steel is a golden standard among cleanroom construction materials. Easy cleaning, favorable heat properties, and chemical resistance make stainless an ideal choice for biopharmaceutical and semiconductor environments. The smooth surface is easy to wipe down, resists biofilm buildup, and will not off-gas.
B2 - Powder-Coated Steel
Powder-coated steel is an economical choice that also provides favorable heat and chemical resistance for most applications. Terra’s signature white powder coat finish provides a high quality, durable barrier to protect against corrosion, plus a clean and attractive aesthetic. The advanced heat-fused formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.
B3 - Acrylic
Acrylic is widely used in cleanrooms and other critical environment applications. Its low initial cost, lightweight, transparency, and tensile strength makes it an attractive choice in many situations. Terra offers economical acrylic enclosures as a budget-friendly option. While acrylic is fairly durable against UV light and impact-resistant, the material is easily degraded by alcohols and solvents.
B4 - Static Dissipative PVC
Static-Dissipative PVC comes in rigid or flexible material for use on hardwall cleanroom panels or cleanroom curtains, dust covers, microenvironments, and other applications requiring a softer material. Non-dissipative plastics quickly accumulate surface charges that attract contaminants. Dissipative plastics prevent static build-up that attracts airborne particulate and lint fibers, which makes surfaces easier to wipe down. Static-dissipative PVC (SD-PVC) will not hold a static charge, offers wide chemical compatibility, and cleans easily. SD-PVC retains a surface resistivity of 10^6 - 10^8 ohms/square indefinitely unlike spray-on coatings that can wear off after a few years. SD-PVC also resists alcohol and most other sterilizing solutions, thus supporting standard disinfecting procedures and extending the life of your enclosure.
B5 - Polycarbonate
Polycarbonate is transparent with a slight gray tint and offers broad-spectrum chemical resistance, high impact resistance, and excellent thermal resistance (to 200°F / 93.3°C). Polycarbonate is stronger and cracks less easily than both acrylic (15x stronger) and glass (250x stronger).
B6 - Polypropylene
Polypropylene is an opaque thermoplastic with excellent chemical resistance against acids and solvents.
B7 - Chlorinated PVC (C-PVC)
Cleanroom chlorinated polyvinyl chloride (C-PVC) wall panels are tested and certified to meet ISO 5 – 8 cleanliness standards. These compressed panels have excellent chemical resistance and prevent particle emission and microbial growth. Their unique solvent-free silicone adhesive allows installation on wallboard substrate creating a strong, rigid structure when mounted to Terra’s steel frame. Welded seams are trim-free, without cracks or gaps. Optional PVC coving is available for floors and corners to further simplify cleaning.
B8 - Fiberglass Reinforced Plastic (FRP)
Class A and C FRP panels feature a unique non-outgassing advanced polymer adhesive for installation on drywall or other substrates. A specialized seam sealant provides trim-free seams that expand and contract to accommodate temperature-induced dimensional changes without creating cracks or gaps. A patented surfacing technology seals panels uniformly to enhance durability and prevent particle emission and microbial growth.
B9 - Tempered Glass
Tempered cleanroom glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempered glass is not only impact resistance, but also ideal for its high visual clarity and aesthetic. Glass wall cleanrooms allow easy monitoring of operators and processes within the cleanroom and tend to appear larger and more spacious. Tempered glass is non-outgassing and chemical-resistant, making it ideal for frequent decontamination.
B10 - Vinyl Curtains
Cleanroom vinyl curtains are lightweight and rapidly installable for creating room partitions, isolating equipment and processes, or mobile isolation when configured with wheel casters. Curtain strips are available in either 4' -wide softwall panels made of blur-free 40 mil vinyl or 8” -wide strip curtains made of blur-free 60 mil vinyl. Static-Dissipative PVC vinyl includes built-in static inhibitors and is recommended for all cleanrooms to minimize particle cling. A T-Grid Mounting System allows suspension of curtains or strip shields from Terra's cleanroom ceiling grid.
B11 - Modesty Panels
Modesty panels provide the combined benefits of natural light while also maintaining a degree of privacy. These panels are ideal for multi-level cleanroom mezzanines that require additional office space or unclassified storage. Modesty panels include an opaque lower panel and upper panel of transparent glass or cleanroom-rated plastic such as polycarbonate or static dissipative PVC. A solid lower panel provides a balance of privacy while the transparent window allows the introduction of natural light and tends to make the space appear larger and less constricted.
B12 - Insulated Panels
A double-wall, insulated wall panel promotes a stable environment for long-term sample storage, cell cultivation, or high-volume process equipment. Terra's double-wall insulated panels are adaptable to the customer’s temperature range specifications and application requirements including cold rooms, incubation, and sound isolation. Double-wall construction with 1”-thick polyurethane insulation enhances cleanroom heating/cooling efficiency and thermal stability. Rigid foam insulation paired with a climate control system provides better temperature stability for applications that require raised flooring for true laminar flow. Double-wall structure allows air to circulate through the inter-wall plenum which further increases filtration and A/C efficiency in high-performance applications.
B13 - Center-Mount Panels With Mirror-Finish Steel Brackets
Most of Terra’s competitors affix the cleanroom wall panels directly to the frame (mounted on the internal or external side of the frame. With this design, replacing cleanroom wall panels is a cumbersome task and requires cleanroom shutdown. If the panels are affixed externally to the frame, installing coved flooring is virtually impossible and the customers are tasked with sterilizing the frame along with all of its crevices. If the panels are mounted internally, the customer loses precious cleanroom space. If the flooring is coved to the internal panels, the customer loses even more space. Terra’s center-mount panel design alleviates these issues.
C - Frame Material
(back to chart)C1 - Stainless Steel (<20% or -5" Hg)
Unlike most competitors who offer only aluminum extruded frames, Terra Universal provides steel and stainless steel frame materials that maintain structural integrity far longer than aluminum under fire conditions. Terra Universal’s BioSafe stainless steel cleanrooms may be ideal for sterile applications since they are not affected by harsh wash-down chemicals.
Double-Wall Steel Panels
Double-wall panels, available in 304/316 stainless or powder-coated steel, create a freestanding structure for affixing a ceiling grid. Each panel consists of an inside and outside portion, which are joined by a compression ball-and-socket fastener. Once joined, the walls can be detached by means of magnetic-grip handles (not included). The hollow space created by these panels provides a convenient installation zone for electrical conduit, gas, and vacuum service line enhancing systems, cleanliness, and appearance. In controlled temperature applications, this void may be insulated to optimize thermal stability and reduce energy costs.All Steel BioSafe Cleanrooms
Terra’s all-steel BioSafe® Modular Cleanroom creates a rigid, self-supporting structure without a separate frame or external bracing, a key advantage over other designs that require special permitting and contractor installation.316L Stainless steel contains the same corrosion-resistant materials as 316 but includes the added benefit of lower carbon content—eliminating the opportunity for excessive metallic contamination and making cracking less likely. Both 316 and 316L can withstand chlorides and chlorinated solutions, such as Spor-Klenz® and Isopropyl Acetate.
C2 - Powder-Coated Steel
Terra's powder-coated steel cleanroom frames support free-standing softwall spans of up to 20 feet without internal posts or ceiling suspension cables. If necessary, reinforcements are provided for high-clearance, long-span rooms. Reinforcements ensure stability and additional seismic requirements for particle-sensitive samples and analytical instruments.
- Excellent for cleanroom applications
- Good weather resistance
- Good mechanical properties
- Good chemical resistance
- Excellent UV protection
- Good storage stability
- Underwriter Laboratories recognized component (UL approved)
D – Standard Components
(back to chart)D1 - Filter Fan Units (FFUs)
Terra’s WhisperFlow® FFU’s feature UL-listed components and built-in baffles that quietly produce uniform laminar airflow across the face of the filter. UL-listed products meet the highest manufacturing standards and reduce the risk of damage, injuries, and electrical hazards.
Smart® Fan Filter Units with EC Motors provide annual energy savings of nearly $500 per fan filter unit. The control card features industry-standard MODBUS® networking, precision speed control (1-100%), and closed-loop control capability for air pressure, airflow, and particle count sensors.
Terra fan filter unit housings are configurable for room-side replaceable, explosion-proof, heated, and low-profile configurations. The same high performance fan filter units are found throughout Terra products including cleanrooms, laminar flow hoods, and containment systems. Filter fan units are stocked, pre-tested, crated, and ready for immediate shipment from Terra's distribution centers.
- Explosion-proof fan filter units are rated for hazardous areas and reduce fire or explosion risks
- Reverse flow fan filters evacuate contaminated air.
- Portable HEPA fan filter units allow rapid deployment and filtration of stagnant air.
D2 - LED Lights
Terra's LED flat panel troffer lights include dimmable brightness and 5 selectable color temperatures to achieve the perfect balance of light including 3000K / 3500K / 4000K / 5000K / 6500K. When paired with Terra's cleanroom control panels, lighting control is available from a centralized location out of the cleanroom. Terra's power distribution modules (PDMs) allow connection of lighting and fan filter via quick connections that do not require hardwiring. LED panels are available with integrated backup batteries that allow for up to an hour of continued visibility in the case of a power failure.
D3 - Control Panels
Cleanroom Control Panels centralize control of cleanroom lighting, power, fan speed, and assignable groups.
Standard Control Panels provide central control and connection of lights and filters. A Fan Filter Replacement Alarm provides a reliable, quantitative method for determining when a HEPA filter requires replacement. An optional Night Service Switch drops all Fan/Filter Units (FFUs) into a low-energy mode for nights and weekends.
Smart® Control Panels connect to EC FFUs for individual or grouped fan control and remote monitoring of room differential pressure, particle counts, temperature, and humidity. Robust systems offer advanced control for up to 200 fan filter units and 16 independently controlled rooms.
D4 - Power Distribution Modules (PDMs)
PDMs allow the addition of ceiling fan/filter units and lights to meet any cleanliness requirement or to upgrade ISO levels or lighting levels after installation. Terra’s PDMs use 3-pin or 4-pin quick connect fittings to power all FFUs, and lights, no matter the cleanroom size. Hardwiring is only required to connect the Primary, Secondary, Booster, and Duplex PDM modules. Because no additional hard wiring is required to connect and disconnect power to additional lights and fan filters, contractors save time, money, and resources during cleanroom installation, expansion, or modification.D5 - Doors
Standard doors with aluminum frames are available in either single or double door configurations and a choice of acrylic or static-dissipative PVC panels.
Swing doors are either Left Hand Reverse (LHR) or Right Hand Reverse (RHR) when viewed from outside the cleanroom (dirty side) to minimize particulate impact on the cleanroom when the door opens.
Cleanroom doors on prehung frames install easily for negative or positive pressure cleanrooms. Choose from swing-out or sliding doors that are UL leak-rated and suitable for ISO 4 - ISO 8 environments.
BioSafe® 316L stainless steel doors have continuous seam welds for sterile and aseptic environments. Terra's BioSafe products forgo cracks and crevices known to harbor particles and microbes. Dual-pane, flush-mount windows minimize horizontal surfaces and crevices where contaminants collect.
Fire-rated doors include insulated double stainless steel walls, wire-free construction, and a fire-rated glass-ceramic viewing window that is impact resistant.
D6 - Windows
Terra's cleanroom windows are compatible with any cleanroom wall material or thickness and designed for compliance within healthcare, pharmaceutical, and GMP manufacturing applications. These easy-to-clean, hygienic windows enhance the visibility of operations and foot traffic without jeopardizing GMP design standards.
Flush-mount cleanroom windows easily and seamlessly install into modular and stick-built cleanrooms and labs. Developed specifically for aseptic requirements in bio-pharmaceutical and cGMP cleanrooms, these hygienic cleanroom windows bring more light and visibility to your workspace without compromising cleanliness requirements. Choose from easy-to-clean framed or frameless stainless steel designs. Fire-rated cleanroom window designs meet building code requirements to protect your employees, operations, and business.
D7 - Filter Replacement Alarm System
Fan filter replacement alarms provide automatic replacement alerts to avoid costly and unexpected operational interruptions. Alarms trigger an audible buzzer when differential pressure reaches an adjustable setpoint. Alarms provide a reliable method for establishing fan filter replacement intervals while also reducing the risk of electrical/fire hazards caused by overworked motors pushing against overloaded HEPA filters.
BioSafe® cleanroom windows include compression fittings for fast, hardware-free installation. Framed and frameless designs are compliant with BSL-rated rooms and ISO 4-compliant spaces.
Related: Cleanroom Window Types and Flushmount Advantages
E – Compatible Cleanroom Class
(back to chart)ISO 14644-1 is a document issued by the International Standards Organization which classifies a controlled environment into six categories of air cleanliness. ISO 14644-1 supersedes previous standards for cleanroom testing and validation such as Federal Standard 209E (FS209E). While references to FS209E are still used, ISO 14644-1 is internationally endorsed for testing and validating a cleanroom that meets FDA, USP, GMP, CGMP, or EU standards. An ISO 14644-1 cleanroom is classified on a scale between ISO Class 3 to ISO Class 8. The ISO class for a particular room is determined for the entire room and not for individual components or materials.
Terra hardwall and BioSafe cleanrooms are configurable for the cleanest ISO 3 - 5 applications including wafer fabrication, microelectronics, nanotechnology, and sterile or biologically sensitive processes. Most industries fall within ISO 6 - ISO 8 cleanroom requirements including medical devices, general manufacturing, electronics assembly, food/beverage, and particulate or aerosol enclosures. Terra's modular hardwall configurations are available in steel, stainless steel, and plastic panels for ISO 5 - ISO 8 spaces with precise particulate and climate control requirements. ValuLine Softwall Modular Cleanrooms configurations are economical for less intensive or non-classified environments and available with preconfigured and ready-to-ship options.
F – Air Conditioning
(back to chart)F1 - Temperature
Terra will work with a local HVAC contractor to provide an air control system that meets your cooling requirements and local codes. If the existing HVAC system cannot be used, Terra will provide the ducting and recirculation system that routes exhaust air to the compressor and delivers cool air to the ceiling FFUs in ample volume to maintain the desired air velocity inside the enclosure. Additional Cleanroom A/C Module provides economical cooling in facilities without adequate HVAC. Based on the cleanroom size, desired temperature, and heat dissipated inside the cleanroom, Terra will configure the appropriate number of AC units required for the space. With larger cleanrooms, Terra works with a local contractor to install a split A/C system, which moves the heat-generating compressor outside the building to reduce heat loads inside the facility.
F2 - Humidification
Terra’s Ultrasonic Humidifier is designed to be a turnkey system as an addition to your cleanroom. Simply place and rest the unit on an open 2’x4’ ceiling grid from above the cleanroom. No fasteners or gaskets are required to secure the unit in place. The system uses five ultrasonic transducers to generate mist and operates on only 150W, less power than conventional steam canister humidifiers. Humidification and dehumidification modules are controlled by a humidistat independent of the thermostat. The Ultrasonic Humidifier comes with a remote control to turn on the unit and set your desired RH levels (up to 100% RH).
F3 - Dehumidification
Cleanroom Dehumidification Modules use silica gel desiccant housed in a rotor to produce dry airflow.
F4 - AC Module Interface
Air Conditioning Modules provide economical cooling in facilities without adequate HVAC. Air Conditioning Modules incorporate dehumidification circuitry and are controlled by a humidistat independent of the thermostat. The unit includes a powder-coated steel air distribution plenum mounted to the external cleanroom wall, which provides conditioned air to up to six FFUs.
Terra can provide custom HVAC modules that operate similarly to an environmental test chamber, adjusting the supply air's temperature and humidity to maintain specific conditions within tight tolerances. This type of system is particularly useful when the environment immediately outside of the cleanroom experiences significant fluctuations in temperature or relative humidity.
G – Environmental Monitoring
(back to chart)Smart® Fan Filter Power & Control Panels centralize control over assignable groups or specific targets when conducting cleanroom pressure-balancing, troubleshooting, or maintenance. An upgraded Smart Control System allows additional environmental sensors and FFU control to meet critical performance/monitoring requirements. A control panel assembly includes power controls for the Fan/Filter Units, lights, and is configurable for other integrations including temperature, humidity, particle counts, differential pressure, and air velocity sensors.
G1 - Temperature
Terra's thermometers, hygrometers, and data recording instruments help monitor, control, and document environmental conditions in your cleanroom or laboratory. Temperature, dew point, and humidity monitoring are essential for products with known sensitivities to heat, environmental drift, static, or trace moisture. Terra Universal provides decades of field-proven expertise and a wide selection of thermometers and sensors for complete room monitoring.
G2 - Humidity
Many labs and cleanrooms choose to maintain a 30% RH level. Anything more than that may cause other issues, such as damage to moisture-sensitive materials. Every Terra cleanroom is available with integrated sensors and monitoring equipment for measuring and recording relative humidity values within the cleanroom.
G3 - Differential Pressure
Magnehelic® Differential Pressure Gauges monitor room-to-room pressure or filter back-pressure. Digital and alarm models are available for activating alerts when pressures fall out of specification.
G4 - Particle Counting
Particle counters are available as standalone handheld units for spot-checking and validation, or as built-in modules for remote monitoring after connection to a centralized building management system (BMS) such as MODBUS.
H – Ventilation & Contaminate Control
(back to chart)H1 - False Ceiling Exhaust
False Ceiling Exhaust: Use of a plenum mounted above the drop ceiling to divert air away from the work area. A false ceiling exhaust includes an array of ceiling-mounted reverse flow fan filter units. Reverse fan filter designs remove air from the work environment and port to an outside environment or dedicated HVAC exhaust. Reverse flow fan filter units mount to the ceiling grid and are available with integrated blowers, or with motorless designs for connection to a remote HVAC blower.
H2 - False Floor Exhaust (Complete Laminarity)
False Floor Exhaust: Raised grated or air-permeable flooring with bottom plenum underneath to achieve full airflow laminarity. False floor exhaust systems, also known as pass through floor exhausts, feature a grated flooring that provides unidirectional airflow and passage of contaminated air. Raised flooring is common for semiconductor applications and ideal for cleanroom classifications below ISO 5 to optimize vertical laminar flow.
p - Floor-Mounted Exhaust
Floor-Mounted Exhausts use side-wall plenums and floor-mounted air handlers to divert air away from the work area. The plenum is mounted directly to the frame and connects to ceiling ducts that exhaust air from the negative pressure room. Floor mount exhausts include internal airflow baffles to smooth corner flow and a pass vent at the bottom with an optional fixed position damper. Containment (negative pressure) rooms require customer furnished in-house exhaust systems capable of pulling the air volume required to create adequate negative pressure
H4 - Biosafety Levels I & II
Biosafety Level 1 is specified as work with well-characterized agents that are known to cause disease in healthy, non-immunocompromised adults. Special containment practices and devices are generally not required, but institutional laboratory practices must be implemented to reduce risk to laboratory personnel.
Biosafety Level 2 is specified as work that poses moderate hazards to personnel and the environment. Research or diagnostic activities that are administered with pathogenic bacteria, such as Staphylococcus aureus or Salmonella, fall into this category. This Biosafety Level builds upon Biosafety Level 1; all of the precautions and practices spelled out in Biosafety Level 1 must be followed in addition to those found in Biosafety Level 2. Special containment practices and devices are generally required to mitigate risk to laboratory personnel.
I – Upgraded Features
(back to chart)I1 - Ion Bars
Ionization bars neutralize electrostatic charges, a common requirement for mixing, packaging, or high-speed assembly lines. Static ionizing bars remove errant charges and have special importance for products with insulative properties.
I2 - Air Curtains
Air curtains produce a jetstream of ULPA Class 10 micro-filtered air at the entry and exit points of a controlled environment. Air curtains are ideal when doors are frequently opened or for doorless entryways. Operating modes include either motion sensor activation with adjustable delay or continuous operation.
I3 - Uninterrupted Power Supply
An uninterrupted power supply (UPS) is only used to maintain power in the cleanroom for a brief time during an unanticipated power outage. A UPS guarantees uninterrupted visibility inside a cleanroom in the event of power loss and provides power for one light (LED or fluorescent) for one hour.
I4 - Cleanroom Emergency Lights
The cleanroom emergency light is an LED light with a backup battery that will remain on during a power outage so employees can see well enough to shut down operations, secure any sensitive products, and evacuate safely in the case that power cannot be immediately restored.
The LED light has a red/green indicator to inform employees after power has returned and the cleanroom is safe to re-enter. When receiving power, the light both operates normally and charges the emergency battery.
I5 - Germicidal UV Lights
UV sanitizing modules affix to the cleanroom ceiling grid to neutralize bacteria, viruses, and mold spores. UV light is particularly effective when targeting resistant bacteria, mold/fungal spores, and gram-negative microbes. The UV-C Germicidal Lamps install on a cleanroom ceiling grid for line-of-sight room disinfection. A safety occupancy sensor switches off the UVC lighting to prevent radiation exposure when occupied.
I6 - Fire Detection System
Terra provides fire detection and suppression systems ideal for wet benches, exhaust fume lines, and locations involving volatile chemicals. Terra cleanrooms support traditional sprinkler and heat sensor configurations or CO2-based suppression systems. The FS System 7 is an integrated fire detection and CO2 suppression system that includes electro-optical sensors for detecting any type of hydrocarbon or non-hydrocarbon fire, even through gas or vapor. A dual-stage alarm triggers an early warning for fires too small to be sensed by overhead sprinklers. An intelligent multi-stage response system prevents the damaging effects of fire suppression in the case that a small fire self-extinguishes or is suppressed rapidly. Terra engineers work with you to determine the fire suppression system appropriate for your requirements and local fire codes.
I7 - Fingerprint Scanner
Biometric fingerprint scanners prevent unauthorized access via shared keys or passwords while also providing data logging capability. An integrated proximity card reader enables two-factor authentication.
I8 - Iris Scanner
Fully automated iris scanner for secure, hands-free access (includes data logging and optional secondary keycard reader).
I9 - Keycard Reader
Keycard readers provide a durable and economical method for maintaining secured keycard access within a cleanroom facility. The low-profile device reads cards up to 3" away and integrates with access control software for data logging and remote monitoring.
I10 - Pass Through
General-Use Pass-Through Chambers are an economical choice for non-sterile items with a low risk of cross-contamination potential including samples, fluids, tools, packaging, or documents.
ValuLine™ Pass-Through Chambers are configurable with economical black acrylic, chemical resistance polypropylene, or stainless steel for unmatched cleanliness and durability within cleanrooms.
BioSafe® Pass-Through chambers with continuous seam welds eliminate hard-to-clean cracks and crevices that can harbor particles and germs. CleanSeam™ design conceals the door interlock mechanism behind the chamber’s wall for a completely unobstructed, easy-to-clean chamber interior.
I11 - Talk Through
Communication and vocal clarity are critical for successful outcomes within cleanrooms, laboratory, and hospital isolation environments. Mechanical and electronic talkthroughs allow easier communication between internal partitions or outside areas of the cleanroom. Both the mechanical and electronic talk throughs include cleanroom-grade components and are easy to mount in either a stick-built cleanroom wall or Terra hardwall modular cleanroom.
I12 - Interlocking Doors
Interlocking doors are common for passthrough chambers and air showers. The interlock prevents doors on either side of the enclosure from opening at the same time. Single side access helps to maintain airflow cascades between rooms of differing pressure and limits room pressure loss after opening and closing of doors.
J – Services
(back to chart)J1 - Cleanroom Installation
Terra Universal is one of few cleanroom manufacturers to provide in-house engineering, in-house design services, and in-house component manufacturing from a single source. While most contractors rely on external engineering teams for drafting and floorplanning, Terra reduces layers of communications and simplifies facility planning and construction to a single point of contact. If requirements change, our modular design allows you to add filters, lighting, ionization, or additional floor space—all at a fraction of the cost you'd face with other systems.
J2 - White Glove Delivery
Terra Universal provides specialized freight service on a per-project basis. Extended delivery options include inside delivery and delivery after business hours. Terra is committed to ensuring the timely and safe delivery of your product. Terra provides product on-site placement and assembly services for facilities that lack the necessary equipment or expertise during the installation and startup process. Our shipment consolidation services provide our customers extended control over shipment and delivery dates by streamlining pickup and delivery times. In-transit freight consolidation ensures pickup and shipment of items at prespecified times. Items are transported from the factory as needed or held at a consolidation terminal for later delivery to the end destination within a prespecified time window.
J3 - FasTrak Expedited Production
Terra's FasTrak limited guarantee is to ship on or before the date specified or to refund up to 100% of FasTrak charges on the client's approved request. This guarantee does NOT cover direct, special, consequential, or other damages and is strictly limited to 100% of the amount paid for FasTrak service.
J4 - Cleanroom Certification
Terra Universal is the leading expert in the design and fabrication of critical environment applications. Terra offers end-to-end certification and testing services for cleanrooms, hoods, glove box isolators, biosafety cabinets, and lab equipment. Services include HEPA leak testing, airflow velocity, airborne particle counting, room pressurization, airflow visualization, ASHRAE 110, and volatile organic compound testing.
J5 - Cleanroom Equipment Validation (IQ/OQ/PQ)
Terra Universal provides comprehensive, turnkey equipment validation packages on a per-project basis. Contact your Terra Universal product specialist to discuss project-specific requirements with our validation engineering team.
Services include:
- Installation Qualification
- Olierational Qualification
- lierformance Qualification
- Construction Qualification
- Factory Accelitance Testing
- Site Accelitance Testing
- User Requirement Sliecification
- Statement of Work
- Feasibility Study
J6 - Decontamination and Cleaning
The Terra Universal network includes trusted vendors for deep micro-cleaning after commissioning and regular cleaning services on a monthly, weekly, or as-needed basis. Through our critical environment cleaning professionals and the use of innovative technology, we make certain your cleanroom environment meets or exceeds the industry’s highest regulations for contamination control, maintenance and safety. We offer comprehensive decontamination service packages for a multiverse of cleanroom applications, gown rooms, vivariums, biomedical facilities, laboratories, and cold/dry rooms.
J7 - USP <797> Consultation
Terra Universal provides uncompromising informational and consultative support for USP 797 and USP 800 compliance. If applicable, Terra will offer a 60-minute phone call with staff compounding pharmacist (CPHA Policy Committee member) Dr. Chris Munoz. Terra USP compounding suites include (as requested) custom cleanroom drawings outlining dimensions, layout, and placement of HEPA filters.
Due to high demand for this consultation and the scope of service provided, Terra must require an up-front consultation fee that will be applied to the purchase of a Terra USP cleanroom; however, even those who do not purchase from Terra will receive cost-saving guidance far exceeding the price of this bundle.
J8 - Seismic Structural Analysis
Terra’s modular cleanrooms are designed with seismic safety in mind. Rigid steel frames and ceiling grids are designed with sufficient factors of safety to provide vertical and lateral strength recommended by professional engineers. Both hardwall and softwall designs can be installed to adhere to local seismic codes. Optional seismic and structural calculations can be drafted and stamped by a licensed PE to help meet municipal permitting requirements.
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- Cleanroom storage systems include laminar flow cabinets that meet ISO 5 requirements, chemical storage cabinets, and specialized models designed for unique requirements
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- Disposable cleanroom garments shield personnel and product from contaminants; non-woven materials limit lint generation, and economical pricing allows garment disposal
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- Organize cleanroom gloves, booties and garments as well as safety glasses, wipers and other lab supplies; bench and wall models conserve space, and BioSafe models simplify cleaning.
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- Terra offers high temperature/acid gloves, disposable and reusable cleanroom gloves, static-safe gloves, glove liners and finger cots
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- UV-C sanitizers use precise wavelengths of light to disinfect rooms, enclosures, parts, tools and surfaces; effectively inactivates most bacteria, viruses and molds spores
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- Complete lines of non-shedding wipes and cleanroom compatible paper, clipboards, file holders and other supplies
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- Easily accomplish out-of-reach cleanroom tasks; meet OSHA safety and load capacity standards; BioSafe stainless steel design with continuous seam welds is ISO 5-compliant.
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- Configurable racks and storage cabinets provide clean, organized storage of cleanroom garments, booties, hoods and other apparel, along with cleanroom and laboratory supplies
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- Hand Cleaners and Dryers from Terra Universal provide hand washing, sanitizing solutions and HEPA-filtered dryers that comply with cleanroom protocol.
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- Select among sticky mats, motorized shoe cleaners and automated contamination control mats to eliminate cleanroom contaminants on shoes
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- Transfer documents and small parts into a lab or medical clinic. Controls access and minimizes foot traffic in sensitive areas.
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- Designed for transferring tall carts or large equipment into a cleanroom on a regular basisRoll-Up Door Passthrough Explained
A - Mounting Configurations:
(back to chart)A1 - Wall Mounted: Terra offers flush-mount and center-mount options. Terra’s CleanMount® system affixes flush against the cleanroom wall to simplify disinfection and prevent particle accumulation.
A2 - Floor Mounted With Ramp: Cleanroom cart pass throughs with integral ramps support transfer of heavy equipment or sample racks into critical spaces.
A3 - Glass Panel Mounted: Stainless steel pass throughs smaller than 2 cubic feet may be mounted in tempered glass panels without support frames, saving facilities on additional hardware and cleaning costs.
B - Chamber Materials:
(back to chart)B1 - Plastic: Terra manufactures and stocks pass through chambers made of economical acrylic, ESD-safe static-dissipative PVC, and chemical-resistant polypropylene.
B2 - Powder-Coated Steel: More economical than stainless steel, durable and rigid powder-coated steel is more resistant to chemical- or moisture-based corrosion than plastic designs.
B3 - 304 Stainless Steel: 304-grade stainless steel resists most harsh chemicals and alcohol-based cleaning agents, and won’t produce contaminants during sterilization.
B4 - 316 Stainless Steel: 316-grade stainless steel contains more nickel and molybdenum than 304-grade stainless steel, enhancing its resistance to corrosion in wet environments, degradation from bleach-based disinfectants, and high-temperature sanitation, like autoclaving.
B5 - Electropolished Service: Electrochemical polishing improves the surface finish of the stainless steel, and supports easy sterilization to reduce micro-cavities where microbes colonize.
C - CleanSeam Design:
(back to chart)C1 - Continuous Seam: Terra’s CleanSeam™ pass through chambers feature fully-welded chambers with smooth, continuous seam welds for a seamless interior that is easy to disinfect. The internal chamber is free of crevices or cracks where contaminants can collect.
D - Double-Wall Design:
(back to chart)Equipping a pass through cabinet with external components - such as door sensors, lighting and filtration – can be a challenge. Cleaning procedures dictate that pass through chambers should be seamless, crevice-free and easy to wipe down. Installing external components on the chamber will make the cleaning process more difficult and restrict the space available for sample transfer.
Terra has solved this issue with CleanMount® double-walled pass through chambers. All external components are enclosed within the space between the internal and external walls, so the integrity of the internal chamber is not jeopardized and the pass through cleanliness rating is not sacrificed.
Double-wall construction has additional benefits: the unit is more rigid and more stable within the wall, the doors achieve a tighter seal and more precise alignment with the chamber, and the interlocking mechanism operates flawlessly.
CleanMount® double-walled systems provide one additional benefit: they are pre-compatible with a wide array of Smart® electronic add-on features, such as UV lighting, HEPA filtration, refrigeration modules and load presence sensors. As the bulk of the additional cost for these add-on features are built into the double-wall design, Terra’s pass throughs can be fully equipped with Smart® electronic controls for a negligible price. While the cost to add these features is low, the benefits are enormous - your pass through chamber is instantly transformed into more than a sample transfer system: a germicidal system, a method for employee communication, a data logger, or a security device.
D1 - Isolated Interlock: Effectively cleaning an internal chamber with an exposed interlock is a huge challenge. Terra offers a fully isolated automatic interlock, installed between the interior and exterior wall panels of the cleanroom transfer hatch.
D2 - Flush-Mount: Terra’s CleanMount® system mounts flush against the cleanroom wall to minimize particle accumulation and simplify cleaning.
D3 - Quick Install: The whole process of installing a pass-through was very messy, until Terra developed the CleanMount® pass-through. The CleanMount® fastening system installs directly into a clean, finished opening in the wall (not a dirty, rough cut-out) without any drilling or screwing into the surrounding wall that can contaminate and delay cleanroom operations. The innovative design firmly clamps to a variety of wall thicknesses without penetrating or damaging the finished surrounding wall. After the wall is fully prepared by your contractor, Terra’s CleanMount® pass through chamber can be installed seamlessly, within 5 minutes. Terra’s video tutorial will guide your contractor through the process to ensure the pass through is correctly installed.
D4 - Contamination-Free Removal: CleanMount® pass throughs also drastically simplify maintenance to minimize downtime of critical cleanroom operations. The units can be removed and reinstalled seamlessly, within minutes, by any member of your organization. If your pass through chamber needs servicing, Terra’s CleanMount® chamber easily slides out of the wall without creating scratches or abrasions that can leave debris and particle contamination in the cleanroom.
D5 - Lipless Front/Rear Edges: The edges of a pass through chamber are prone to snag garments and collect contaminants. Terra’s CleanMount® and BioSafe® design includes lipless front and rear edges for easy sterilization.
D6 - Rounded Corners: The corners inside a pass through chamber are a common spot for contaminates to collect or microbes to colonize. Terra’s CleanMount® and BioSafe® pass throughs feature fully rounded (radius) corners for easy disinfection.
D7 - Lift-Off Replaceable Doors: Effectively disinfecting pass-through doors can be a challenge. Both Terra’s CleanMount® and BioSafe® pass-through chambers include removable doors. BioSafe® passthroughs feature autoclave-safe doors with blue elastomeric door seals.
E - BioSafe Design:
(back to chart)E1 - Meets Aseptic Requirements: Terra’s pass through chambers are UL-rated, CE-marked and leak-tested. Specialty models meet USP <797> and <800> requirements, cGMP standards, UL-B fire ratings, and BSL 1 and 2 criteria. If you’re installing a pass through into a regulated space, talk to your Terra product specialist to find a model to fit your application.
E2 - BioSeal Door with Knife Edge Seal: For many applications, maintaining positive or negative pressure inside of a cleanroom is critical, whether the environment is sensitive to particles, microbial growth, moisture or static build-up. Your cleanroom’s pressure rating can be compromised by any personnel entrance or exit, including your pass through chamber. Terra’s pass through chambers will support the integrity of your cleanroom, allowing it to maintain your desired cleanliness levels and specifications. Terra’s BioSeal™ doors with elastomeric gaskets are pressure-rated, autoclave-safe and compatible with critical, regulated environments.
F - Smart Pass-Through Design – Standard Features:
(back to chart)F1 - Electronic Door Interlock: Pass through chambers must be designed to prevent both doors from opening at the same time, causing cross contamination between two sterile spaces and a loss of your cleanroom’s pressure rating. A critical component in the pass through design, the interlocking mechanism, prevents this unwanted occurrence. The interlock can be mechanical, utilizing a hook and latch system, or electrical, using an e-strike. Mechanical interlocks come in two flavors: manual or automatic. For mechanical interlocks, Terra only offers automatic systems, as manual systems must be engaged by the operator, severely reducing transfer efficiency. In certain applications, Terra pass through chambers are opened every five seconds for the entirety of a work shift. This level of access frequency would not be possible with a manual, mechanical interlock. Electrical interlocks are often installed on passthrough chambers with automatic, hands-free doors or systems equipped with access controls, occupancy sensors, building management integration or event logs. Terra’s Smart® pass-through chambers can be equipped with these capabilities and more, including refrigeration modules, intercoms, UV germicidal lighting and HEPA filtration.
F2 - Electrical Integration/Control: When first introduced to the market, the pass through chamber had one specific job: to act as the gatekeeper for sample transfer into and out of the cleanroom, thereby reducing personnel traffic. As the pass through has become more integral to the operations within a cleanroom, the potential jobs it can perform and problems it can solve have increased. Terra has changed the definition of the pass through chamber by offering a menu of standard, add-on features that expand the role of the pass through chamber within a cleanroom. Beyond sample transfer, a pass through can now disinfect products, allow employees in separate areas to communicate, log environmental conditions, track personnel or packages, and add layers of security to your facility.
F3 - Service & Open Door Alerts: In regulated environments, like FDA or cGMP facilities, event logs that track employee movement, environmental conditions, equipment status, and service alerts are a requirement. Terra’s Smart® Pass Through captures these data and communicates with your building management system or LIMS software to export the data at stated intervals.
F4 - Door Status LED Display Bar: The interlocking mechanism is the lifeblood of the pass through chamber; its integrity dictates the life of the unit. If the interlock doesn’t function effectively, your facility may experience sample cross contamination, product failures, or employee safety issues. The interlock, and by proxy, the pass through doors must be operated correctly; misuse can shorten the lifespan of your pass through and decrease its effectiveness. To reduce interlock abuse, Terra has introduced several solutions, such as buzzers and color-coded warning signals. Terra’s Smart® LED Door Status Bar displays a red light when the opposite door is open, informing the operator to wait before attempting to open the door, and a green light when the opposite door is shut, informing the operator to proceed in opening the door. Without a status bar, interlock abuse is common: an operator will attempt to open the door, not knowing that the opposite door is open; when their door doesn’t open, the operator will use excessive force to pry the door open, causing damage to the door seal and the interlock. These signals act as the traffic lights for Terra’s Smart® pass through chambers, ensuring interlock abuse is prevented. If traffic lights didn’t exist on roadways, would car accidents be blamed on automotive manufacturers? In this same vein, Terra has taken the extra step in supporting pass through care, so our customers can reap the full benefits of our system for many years.
G - Smart Pass-Through Options:
(back to chart)G1 - Hands-Free Automatic Door: In the semiconductor industry, the highest level of contamination control is achieved by totally eliminating the presence of humans in the critical manufacturing areas through full robotic automation and closed-loop enclosures. Terra Universal has developed and offered solutions for the semiconductor industry since its inception in 1976. We understand the benefits that reducing foot traffic will have on a company’s operations, processes and products. Terra’s Smart® pass through chambers can be equipped with automatic doors and electronic controllers that support integration with fully automated systems.
G3 - Recessed LED Lighting: LED lighting illuminates the internal chamber and mounts flush into the ceiling for easy sterilization. The light automatically activates when either door opens, supporting hands-free operation of the pass through chamber.
G4 - UV-C Sanitizing Module: Germicidal UV-C light, emitted at 254 nanometers, denatures microbial DNA after short, intense exposure. UV-C lighting will ensure your pass through box is fully sterilized and does not impact the bio-burden of your cleanroom.
G5 - ULPA/HEPA-Filtered Air Shower: Recirculating filtered pass throughs use a closed loop system to continuously recirculate air in the chamber through built-in HEPA or ULPA filters. These clean air pass thrus are self-contained and do not require any ventilation or exhaust ducting. They run continuously to reduce particle concentration within the chamber. This design is commonly used because the closed-loop system does not impact adjacent room pressure balances when operating.
With heavily mandated cleanliness requirements associated with USP 797 and USP 800 cleanrooms, a pharmacy pass thru is a vital point for sterile pharmaceutical compounding. Terra’s HEPA filtered pass through and Smart® HEPA filtered pass thru use recirculating ventilation to meet and exceed USP 797 and USP 800 guidelines.
Comprehensively wiping down a cart filled with patient samples or supplies can be time consuming. Terra’s high velocity air shower pass through is designed with high-pressure nozzles that wash the cart from every side with ULPA-filtered air. After a 30-second, hands-free wash cycle; your cart will be clean, particle-free and contamination-free. As a secondary disinfection mechanism, equip your cart with a germicidal, UV-C light to prevent microbial growth.
G6 - Refrigeration Module: For temperature sensitive samples or equipment, Terra’s Smart® pass throughs may be equipped with a refrigeration module that maintains a 4°C set point within the internal chamber. Terra’s high-security, refrigerated pass through chambers are utilized for overnight storage of patient samples.
G7 - Pushbutton Intercom: Built-in intercom system allows operators to easily communicate between rooms. Without intercoms, operators are prone to opening both pass through doors, by bypassing the interlock, to communicate, thus breaking the cleanroom seal and exposing sterile areas to cross contamination.
G8 - LCD Message Panel: LCD panels are designed for regulated environments, like FDA, cGMP, GLP or USP <797> facilities. They display critical environmental information related to the interior chamber conditions, such as temperature and relative humidity.
G9 - 90° Corner Configurations: Terra has 45 years of experience in customized equipment. Smart® pass-throughs with custom door configurations can be designed per-project to install in corner walls with multiple doors: 2 doors (L-shape), 3 doors (T-shape), or 4 doors (X-shape).
G10 - Load Presence Sensor: Infrared beams detect objects placed within the internal transfer chamber and can communicate data to an audible alarm or sample tracking system. They are ideal for highly-regulated facilities maintaining cGMP compliance or systems installed onto the external wall of a building for package delivery.
G11 - Video Camera: An interior HD video camera records continuously or upon door opening. The camera can also be adjusted to monitor spaces external to the pass through chamber.
G12 - Proximity Card Reader: Card readers with system lockout and keypad for two-factor authentication are ideal designed for pharmacies dispensing controlled substances.
G13 - Keyless Door Access Panel: Keypad readers for high-security areas prevent unauthorized access to the pass through chamber.
G14 - Fingerprint Reader: Biometric fingerprint scanners include proximity card reader for two-factor authentication.
G15 - Iris Scanner: A fully automated iris scanner provides secure, hands-free access and includes data logging plus a secondary keycard reader.
G16 - Access Data Logging: This software logs environmental conditions and exports the data to a local server or building management system.
G17 - Laminar Flow HEPA Filtration: Terra’s Smart® pass through cabinets may be equipped with a HEPA-filtered blower module, installed above the unit, that washes the internal chamber with uniform, unidirectional, micro-filtered air.
G18 - Ionization Module: Ion bars emit a static neutralizing stream of cations and anions to prevent ESD discharge. They are ideal for protecting static-sensitive medical devices and microelectronics.
H - Fire-Rates Pass-Throughs:
(back to chart)H1 - Fire-Rated Doors: If you are installing a pass through chamber in a fire-rated space, the pass through must carry the same fire-rating as the wall in which it is installed. Terra’s fire-rated pass through chambers carry the UL-B label for 90-minute fire exposure, suitable for installation in areas with 2-hour wall ratings. Available in 11 different sizes to fit your sample transfer needs, Terra offers fire-rated units that are pre-tested, crated and in-stock for immediate shipment.
I - Other Optional Accessories:
(back to chart)I1 & I2 - BioSafe Removable Racks and Shelves: Stainless steel racks and shelves can be removed for disinfection or replaced as user requirements change.
I3 - CleanTop Sloping Top: For non-flush mount pass through systems, Terra’s CleanTop™ sloping top provides a smooth, easy to disinfect surface between the pass through door and the wall.
I4 - Ventilation Module: A cleanroom pass thru chamber with exhausted ventilation (also known as a sink airlock) provides a single pass (open loop) supply of exhausted air. This extraction system creates negative pressure to prevent particles from escaping the chamber from either door. This design can be used for applications where hazardous materials or particulates must be contained and kept from passing through either side of the chamber. Ventilation units can also be used to duct fumes that might be present in a specimen, allowing the cleanroom pass thru box to act as a drying system. Specify a flange adapter to allow connection from the pass thru chamber to an in-house ventilation system. Exhaust air speed sensors can also be configured for added safety to alarm in the event air speed falls below a specified set point.
I5 - Grounding Terminals: For static-sensitive material, Terra’s cleanroom pass through box can be equipped with grounding terminals for an ESD-safe internal chamber.
I6 - High-Velocity side & Top HEPA Air Shower: Installed on floor mounted pass throughs, the air shower directs HEPA-filtered air through high-velocity nozzles installed on the ceiling and walls of the internal chamber to wash carts free of dust and contaminants.
I7 - Large-Clearance Roll-Up Doors: Terra’s roll-up door pass throughs are designed for consistent, high-throughput transfer of large, bulky equipment into and out of the cleanroom. Roll-up pass thru designs include safety pressure sensors, automatic interlocks, touch panel interfaces, and laser door positioning sensors.
I8 - Reinforced, Ruggedized Contruction: Rugged pass through transfer hatches featuring double-wall construction and heavy-duty self-closing doors are designed for high-throughput, high-security areas such as correctional facilities.
I9 - Locking Latches: For secure areas housing controlled substances or high-value products, Terra offers a variety of locking door latches and access controls for pass thru cabinets.
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