Architects & Builders

A - Style
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A1 - Framed Cleanroom Windows

Terra’s framed cleanroom windows feature a 2.75”-wide, 304-grade stainless steel or polypropylene outer frame that mounts tightly against the cleanroom wall, allowing the glass pane to be recessed into the wall. The chemical-resistant frame provides a smooth, durable, and easy-to-clean surface.

Framed windows are also available in fire-rated designs featuring an assembly and window glazing manufactured and tested in accordance with UL 9 and NFPA 80 criteria.

A2 - Frameless Cleanroom Windows

Terra’s BioSafe flush-mount cleanroom windows feature an innovative CleanMount mounting system with no hardware or fasteners to support fast, easy installation.

Frameless windows include 0.25” thick tempered glass panels that overlay the wall surface on one or both sides. The glazing is attached to an internal stainless steel frame for a showcase appearance compatible with a variety of wall materials and thicknesses. The windows are designed without any cracks or crevices where microbes can aggregate and colonize, supporting easy disinfection with biocides or alcohol-based cleaners. The black faux border rests behind the glass pane to prevent scratching or degradation over time.

Read: What are the Advantages of Flush-mount Cleanroom Windows?

B - Cleanroom Window Configuration
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B1 - Single Pane Cleanroom Windows

Single-pane cleanroom windows, designed for installation between a cleanroom and a non-controlled space, feature a seamless stainless steel or polypropylene ledge on the opposite side of the glass pane for small part storage.

B2 - Double Pane Cleanroom Windows

Double-pane cleanroom windows, designed for installation between two critical spaces, feature flush-mounted, framed or frameless panes on both sides of the wall.

C - Cleanroom Window Pane Material
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C1 - Glass Cleanroom Windows

Frameless windows include a 0.25” thick, durable tempered glass pane while framed windows include a 0.5” thick tempered glass pane. Tempered glass is disinfectant-resistant, long-lasting, and provides high visual clarity.

C2 - Polycarbonate Cleanroom Windows

Impact-resistant and heat-resistant polycarbonate panes are optimal for equipment corridors, high-traffic areas, and spaces storing heat-generating equipment.

D - Cleanroom Window Frame Material
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D1 - Polypropylene Cleanroom Window Frames

Terra’s ValuLine windows feature an economical polypropylene frame that resists chemicals and biocides.

D2 - Stainless Steel Cleanroom Window Frames

Terra’s BioSafe windows feature an aseptic, crevice-free, lipless frame composed of 304-grade, chemical-resistant stainless steel.

E - Cleanroom Window Pane Width
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Terra manufactures all cleanroom window designs – framed, frameless, single-pane and double-pane – to exact project specifications between 12” and 96” in width.

F - Pane Height
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Terra manufactures all window styles to exact customer specifications, down 0.1” tolerances, between 12” and 55” in height.

G - Cleanroom Window Wall Thickness
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Terra’s windows are designed to accommodate modular cleanroom wall thicknesses down to 3” and stick-built, studded walls as thick as 12”.

H - Special Cleanroom Window Features
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H1 - Crevice-Free Flush Mount Cleanroom Window Design

Terra’s BioSafe windows feature a flush-mount system free of cracks or crevices that harbor microbes or contaminants. Terra’s BioSafe windows support easy wipe-downs, help maintain aseptic conditions, and install in fewer than 5 minutes.

H2 - Fire-Rated Cleanroom Windows

Terra’s BioSafe Fire-Rated windows feature 3/16” thick tempered glass panels that are tested in accordance with UL 9 and NFPA 80 (National Fire Rating Association) criteria for a 20-minute rating.

H3 - Internal Cleanroom Window Blinds

Terra’s BioSafe and ValuLine cleanroom windows come with optional integral, cordless blinds for patient or research privacy.

H4 - Rapid Installation Cleanroom Windows

Terra’s BioSafe flush-mount cleanroom windows feature a CleanMount mounting system with no hardware or fasteners to support easy installation in fewer than 5 minutes. The CleanMount clamping design allows the window to be installed without drilling into the cleanroom wall. Internal brackets installed on each corner of the window frame may be adjusted to level the frame inside the wall cut-out.

H5 - Cleanroom Privacy Window

Terra’s BioSafe Switch Glass cleanroom windows are designed for patient and research privacy in medical facilities or research labs. The glass is operated via a wired switch or Wi-Fi remote control, toggling between clear viewing and opaque privacy.

Where Can I Source Cleanroom Windows Online?

Shop Terra Universal online to view a wide selection of cleanroom window styles, materials, and specialty configurations. Terra Universal is a cleanroom specialized manufacturer that offers online and offline sales, end-to-end construction, outfitting, certification, and testing for a wide variety of controlled environments.

Try The Cleanroom Window Configurator

Terra's cleanroom window configurator is a fast and simple way to find the ideal cleanroom window size, material, and style. Enter your required window dimensions and immediately locate a wide selection of compatible cleanroom windows online.

Have a technical question that requires a prompt and helpful response? Contact a Terra specialist via phone, live chat, or email.

Configure My Cleanroom Window Package Online

A - Laboratory Rollers, Rockers, Mixers, and Blotters
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A - Cleanroom Door Style

A1 - Bi-Parting Cleanroom Doors

Terra’s external-mounted and recessed double sliding doors open in a bi-parting style to support easy ingress and egress of bulky equipment and transport carts.

Double bi-parting doors, which undergo life testing for a minimum of 1,000 cycles, include load-bearing wheels made of cast urethane for smooth, long-lasting operation. Elastomeric door seals and a fiberglass-reinforced timing belt ensure durability and operational uniformity.

A2 - Roll-Up Cleanroom Doors

Automatic roll-up doors are constructed of rigid stainless steel to accommodate high-traffic operations in cleanrooms and operating rooms. All automated roll-up doors include a PLC touch panel for easy operation and an emergency stop button with a safety switch that engages if the door strikes an object.

Read More: Saving Space with High-Speed Roll Up Cleanroom Doors

A3 - Sliding Cleanroom Doors

Terra’s cleanroom-compliant sliding doors are manufactured in a broad array of designs for different applications, cleanliness levels, and environments. Terra manufactures manual and automatic sliding doors, in single- and double-door designs, pre-hung in stainless steel or aluminum, external–mounted or recessed frames.

Automatic sliding doors include a touch-motion door pad for hands-free operation and a microprocessor-controller to monitor door position and closing speed. Pre-assembled headers and panels are well-suited for retrofit projects requiring quick and easy installation.

A4 - Swing Cleanroom Doors

Terra’s swing-out and swing-in cleanroom doors are manufactured from hospital-grade materials for use in CGMP labs, operating rooms, surgical suites, and ISO-rated spaces.

Cleanroom Door Gaskets

Terra manufactures swing doors in a number of different styles and configurations: automatic, manual, fire-rated, pre-hung on a rigid door frame, single-wide, double-wide, left-hand opening, and right-hand opening. Terra’s swing doors include a fully concealed drop-down gasket that seals the bottom gap when the door closes, ensuring the door holds room pressure.

B - Door Configuration
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B1 - Single Cleanroom Door

Terra manufactures single-wide sliding and swing-out cleanroom doors in standard 36” widths and customized, project-specific sizes for stick-built cleanrooms, modular cleanrooms, operating rooms, and surgical suites. Terra’s cleanroom swing doors are designed in left-hand opening and right-hand opening configurations. Standard swing and reverse swing orientations support different cleanroom pressure cascades.

B2 - Double Cleanroom Door

Terra produces double doors in sliding and swing-out designs to standard 72” widths and custom, application-specific sizes for modular and brick-and-mortar cleanrooms. Double door designs are offered in a broad array of configurations: automatic, manual, bi-parting, swing-out, and sliding. All double doors are compatible with Terra’s electromagnetic interlocking system that prevents cross-contamination stemming from two doors opening simultaneously.

C - Door Operation
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C1 - Automatic Cleanroom Doors

Terra’s automatic doors are available in sliding, swing-out, single-door, and double-door configurations. Terra’s automatic doors include a motion sensor and control pad for hands-free operation. The controller regulates the opening and closing speeds to promote user safety and a blow-open feature to meet NFPA 92B smoke ventilation requirements. The ADA-compliant controller includes an advanced power assist feature to support minimal operator effort when opened manually.

C2 - Manual Cleanroom Doors

Terra’s manual doors are manufactured in sliding, swing-out, bi-parting, single-door, and double-door configurations. Optimal for retrofit projects and new lab build-outs of stick-built cleanrooms, Terra’s pre-hung cleanrooms doors are pre-installed on a rigid, aseptic door frame for quick installation. For replacements doors installed on Terra modular cleanrooms, Terra offers non-pre-hungnon pre-hung doors that require framing during installation.

D - Door Orientation
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D1 - Left-Hand Opening Cleanroom Doors

Terra’s left-hand cleanroom swing doors are designed to swing into the cleanroom or out from the cleanroom with either the left or right hand. Terra’s left-hand doors mount on the left-hand side of the door frame; the handle affixes to the right-side of the door to allow the operator to use their left hand to open the door.

D2 - Right-Hand Opening Cleanroom Doors

Terra’s right-hand cleanroom swing doors are designed to swing into the cleanroom or out from the cleanroom with either the left or right hand. Terra’s right-hand doors mount on the right-hand side of the door frame; the handle affixes to the left-side of the door to allow the operator to use their right hand to open the door.

E - Cleanroom Door Design
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E1 - Pre-Hung in Door Frame

Pre hung cleanroom door frames are optimal for retrofit projects and new lab build-outs of brick-and-mortar cleanrooms, Terra’s pre-hung cleanrooms doors are pre-installed on a rigid, aseptic door frame for quick installation.

E2 - Requires Framing at Installation

For replacement doors installed on Terra modular cleanrooms, Terra offers non-pre-hung doors that require framing during installation.

F - Cleanroom Door Frame Material
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F1 - 304 Grade Stainless Steel Cleanroom Doors

304-grade stainless steel is rigid, durable, long-lasting, promotes aseptic conditions, and resists biocides and hospital-grade disinfectants.

F2 - 316L Grade Stainless Steel Cleanroom Doors

316L grade stainless steel resists corrosion, harsh chemicals, and rapid changes in ambient temperature and humidity.

F3 - Aluminum Cleanroom Doors

Aluminum is lightweight, non-outgassing, chemical-resistant, and exhibits high tensile strength.

F4 - Powder-Coated Aluminum Cleanroom Doors

Terra’s signature white powder-coat cleanroom door formulation exceeds ASTM and ISO paint standards to resist chipping, scratching and fading.

F5 - Powder-Coated Steel Cleanroom Doors

Terra’s durable white powder-coat formulation resists common alcohol-based cleaners, doesn’t degrade over time, resists corrosion, exceeds ISO 14644-1 cleanroom requirements, and meets ASTM paint standards.

G - Cleanroom Door Panel Material
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G1 - 304 Grade Stainless Steel Cleanroom Doors

304-grade stainless steel cleanroom doors are rigid, durable, long-lasting, promote aseptic conditions, provide privacy, and resist biocides and hospital-grade disinfectants.

G2 - 316L Grade Stainless Steel Cleanroom Doors

316L grade stainless steel cleanroom doors ensure privacy and resist corrosion, harsh chemicals, and rapid changes in ambient temperature and humidity.

G3 - Acrylic Cleanroom Door Panels

Transparent, economical, lightweight acrylic cleanroom doors offer durability and superior clarity. However, acrylic panels offer low chemical resistance and poor protection from electrostatic discharge.

G4 - Polycarbonate Cleanroom Door Panels

Transparent polycarbonate doors offer high impact resistance and thermal resistance (to 200°F) as well as chemical resistance to common disinfectants.

G5 - Polypropylene Cleanroom Door Panels

White polypropylene provides user privacy and resistance to harsh acids, bases, and solvents.

G6 - Polysim Cleanroom Door Panels

Lightweight, non-outgassing polyurethane cleanroom curtains resist static charges, support easy disinfection, and won’t degrade after prolonged exposure to UV light.

G7 - Powder-Coated Steel Cleanroom Door Panels

Terra’s durable white powder-coat formulation resists common alcohol-based cleaners, doesn’t degrade over time, resists corrosion, exceeds ISO 14644-1 cleanroom requirements, and meets ASTM paint standards.

G8 - Static-Dissipative PVC Cleanroom Door Panels

Transparent Static-Dissipative PVC cleanroom doors prevent static build that attracts airborne particulates and fibers, making surfaces easier to wipe down. SD-PVC does not hold a static charge, resists a wide range of chemicals, and cleans easily. Unlike spray coatings that wear off after prolonged use, SD-PVC retains a surface resistivity of 108 ohms/square indefinitely.

G9 - Tempered Glass Cleanroom Door Panels

Tempered safety glass cleanroom doors are impact-resistant, temperature resistant, non-outgassing and exhibit high visual clarity.

G10 - Vinyl Fabric Cleanroom Door Panels

Terra’s high-speed roll-up doors are composed of cleanroom-grade, lightweight vinyl fabric to support rapid opening speeds.

H - Cleanroom Door Window Style
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Terra Universal’s cleanroom doors are designed without windows for full patient or research privacy, partial windows spanning the top half of the door panel, and full windows spanning the entire height of the door (for busy, high-traffic corridors).

I - Cleanroom Door Opening Height
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Terra manufactures cleanroom doors to standard 81” tall designs and application-specific doors from 74” to 120” in height (for transport of bulky equipment). Terra’s in-house engineering team works with customers on a daily basis to design customized products to specific user requirements.

K - Cleanroom Door Opening Width

Terra stocks standard single-wide cleanroom doors, manufactured to 36” wide, and standard double-wide cleanroom doors, manufactured to 72” wide, for immediate shipment. Special-application single doors are available from 32” to 48” in width and special-application double doors are available from 60” to 80” in width.

K - Special Features
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K1 - Fire-Rated Cleanroom Doors

Terra’s BioSafe fire-rated manual swing doors are designed for facilities requiring up to three hours of fire protection. Terra’s fire-rated cleanroom doors are thermally insulated with honeycomb padding for added structural strength.

Browse Fire Rated Cleanroom Doors

• 45 Min.
• 90 Min.
• 180 Min.

K2 - UL Leak Rated Cleanroom Doors

Terra’s UL leak-rated cleanroom doors are equipped with a fully concealed drop-down gasket that seals the bottom gap when the door closes, ensuring that room pressure is maintained on each side of the door.

K3 - External Mount Cleanroom Doors

Externally mounted cleanroom sliding doors are optimal for remodeling remodel projects or replacement doors installed into existing stick-built or modular cleanrooms.

K4 - Recessed Mount Cleanroom Doors

Recessed mounted sliding doors are ideal for tight hallways or areas lacking overhead space above the door frame.

Pre-Hung Recessed Manual Slide Doors, Stainless Steel

Recessed Automatic Sliding Doors, Aluminum

K5 - Cylindrical Lock Cleanroom Doors

Terra’s single- and double-wide fire-rated doors are equipped with a cylindrical lock prep, rated at government 161, with a 2 x ¾” backset.

K6 - Mortise Lock

Terra’s single-wide fire-rated doors are equipped with a mortise lock prep with a 2 x ¾” backset trim cut-out.

K7 - Exit Push Bar

Terra’s BioSafe CleanSeam cleanroom doors include an optional pre-installed exit push bar with locking lever handle, fabricated of stainless steel, to support hands-free egress from the cleanroom.

K8 - Two-Way Cleanroom Door Swing

Terra’s cleanroom doors feature an optional double-action spring door hinge to support two-way opening and closing of swing doors.

K9 - Crevice-Free Cleanroom Door Design

Terra’s BioSafe CleanSeam doors are medical-grade, USP-compliant and compatible with all areas of the hospital, including operating rooms and surgical suites. The door is fabricated with continuous-seam welds to eliminate cracks and crevices where microbes colonize. The dual-pane window is mounted flush with the door for easy wipe downs.

K10 - Electronic Cleanroom Door Interlock

Terra’s cleanroom doors are compatible with Terra’s electromagnetic interlocking system that prevents cross-contamination stemming from two doors opening simultaneously.

K11 - Breakaway Cleanroom Door Panels

To ensure that cleanroom employees can quickly exit the area in the event of a fire or power outage, Terra offers emergency breakaway panels on cleanroom sliding and swing-out doors.

Shop Cleanroom Doors Online

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, cleanroom doors, pass throughs, windows, and roll up doors.

Shop online to view a wide selection of cleanroom doors in various styles, frames, configurations, and various opening-closing mechanisms.

Contact a Terra cleanroom specialist for assistance with product configuration or application compliance via web chat, email, or phone.

Browse Cleanroom Doors by Swing Type

Automatic Bi-Part

Double Bi-Parting

Automatic Right Sliding

Left Sliding

Right Sliding

Double Swing

Single Left Swing

Single Right Swing

A - Fan Filter Air Flow Design
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A1 - Positive Pressure Fan Filter Units

Terra's positive pressure fan filter units include HEPA fan blowers 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 - Negative Pressure Fan Filter Units

Reverse-flow impeller FFUs capture particles generated in localized cleanroom spaces to minimize contamination and ensure operator protection.

Terra's negative pressure fan filters provide capable and safe production environments for reducing operator hazards in increased-risk applications such as USP 800 compounding, infectious disease research, and chemically intensive processes that require volatile chemical handling.

B - Compatible Cleanroom Fan Filters
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B1 - HEPA Fan Filter Units

HEPA filters remove 99.97% of airborne particles greater than or equal to 0.3μm in diameter. HEPA fan filter units are common for contamination and air quality control for industries including pharmaceuticals, medical devices, OEM assembly, healthcare, life sciences, infection control, and laboratory or testing environments.

B2 - ULPA Fan Filter Units

ULPA filters are 99.999% efficient for monodispersed particles 0.12 μm in diameter or larger. ULPA filtration offers additional particulate control for ultra-sensitive hardware including display panels, wafer chips, microoptics, satellite imaging, and nanotechnology applications.

C - Filter Replacement Design
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C1 - Top-Side Fan Filter Units

Top-side replaceable filters are a standard package available with Terra fan filter units. Standard FFUs offer a lower cost option and are ideal for small-scale and less critical cleanroom operations. To change the filter, the unit must be entirely pulled out of the ceiling bay. Climbing up to remove the bulky FFU can be difficult, dirty, and hazardous. The procedure may require tall ladders, multiple people, personal protective equipment, and perhaps worst of all, shutting down the cleanroom.

C2 - Room-Side Fan Filter Units (RSR)

Room Side Replaceable (RSR) fan filters eliminate the need for access to a roof or overhead ceiling space when conducting fan filter maintenance and replacement. Breaching the cleanroom ceiling is not required when installing or replacing RSR fan filter units or their HEPA filter media. The filter media is easily accessible from inside the cleanroom, an ideal trait for facilities with restricted ceiling heights or for pharmaceutical operations that require more frequent HEPA filter replacements.

D - Fan Filter Motor Type
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D1 - Electronically Commutated (EC)

Terra's Smart® electronically commutated (EC) brushless motors include an internal microprocessor and MODBUS® networking control card. Easily integrate your fan filter with a building management system, control panel, or additional air pressure, airflow, and particle count sensors.

D2 - Permanent Split Capacitor (PSC)

PSC motors are priced for affordability but are significantly less energy-efficient than their EC counterparts.

Read more: FFU Costs for an Energy-Efficient Cleanroom

D3 - None (HVAC Connection)

Motorless fan filter units include ducted collars for connection to an existing air handling unit or pre-conditioned air supply. Unlike actively powered FFU motors, motorless designs do not require electrical connections. The lightweight assembly makes for easy ceiling grid installation and includes the same baffles, diffusers, and HEPA media for smooth, quiet, and uniform air delivery.

E - Construction Material
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E1 - Stainless Steel Fan Filter Units

Stainless steel is a gold standard among cleanroom construction materials. Easy cleaning, favorable heat properties, and chemical resistance make stainless steel an ideal choice for biopharmaceutical and semiconductor environments. The smooth surface is easy to wipe down, resists biofilm buildup, and will not off-gas.

E2 - Powder-Coated Steel Fan Filter Units

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-fuse formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.

F - Fan Filter Size
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Terra provides several fan filter unit sizes and styles to accommodate your existing ceiling grid. Each configuration is available with optional duct collars and optional 1/4 inch (6 mm) eyebolts in all (4) corners for hangwire support (order eye bolt package separately).

F1 - 24" x 24" Fan Filter Units

2' x 2' fan filters provide moderate flow rates and accommodate standard square ceiling grid installations. Lightweight (25 lbs) provides easier installation.

Approximate Weight: 25 LBS

F2 - 24" x 36" Fan Filter Units

2' x 3' fan filter units are intended for use with supported ceilings that can safely bear the weight of a fan filter unit or light panels to be installed. HEPA/ULPA packages provide a uniform flow of microfiltered air to meet cleanliness standards down to Class 10 (ISO 4).

Approximate Weight: 53 LBS

F3 - 24" x 48" Fan Filter Units

2' X 4' fan filter units accommodate standard cleanroom ceiling grid and laminar flow hood configurations and are intended for use with supported ceilings that can safely bear the weight of a fan filter unit or light panels to be installed. HEPA/ULPA filters provide a uniform flow of microfiltered air to meet cleanliness standards down to Class 10 (ISO 4). Optional with 1/4 inch (6 mm) eyebolts in all (4) corners for hangwire support (order eye bolt package separately).

Approximate Weight: 71 LBS.

F4 - 16" x 24" Fan Filter Units

Narrow fan filter units fit in a space-saving enclosure for a smaller footprint. Optional with 1/4 inch (6 mm) eyebolts in all (4) corners for hangwire support (order eye bolt package separately)

F5 - 16" x 36" Fan Filter Units

Narrow fan filter units provide a space-saving enclosure for a smaller footprint. Optional with 1/4 inch (6 mm) eyebolts in all (4) corners for hangwire support (order eye bolt package separately)

Approximate Weight: 50 Lbs

F6 - 16" x 48" Fan Filter Units

Narrow fan filter units fit in a space-saving enclosure for a smaller footprint. Optional with 1/4 inch (6 mm) eyebolts in all (4) corners for hangwire support (order eye bolt package separately)

Approximate Weight: 50 Lbs

G - Fan Filter Voltage
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G1 - 120 Volt Fan Filter Units

Standard 120 volt connection is suitable for standard residential power outlets in the US. Ideal for powering mobile-mounted fan filter units. Black and red wires are connected to the lower terminal. A along with a yellow jumper cable.

G2 - 240 Volt Fan Filter Units

240V connections require less current (amperage) and smaller conductors than appliances designed to operate at 120V. Ideal for fan filter units with optional heating, cooling, ionization, or UV lighting modules.

H - Special Fan Filter Application Features
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H1 - Integrated LED Fan Filter Light

Fan filter units with integrated LED lights enable 100% coverage of a ceiling grid with fan units while also providing adequate lighting. 100% integration of the ceiling grid is typically reserved for high-performance environments with ISO Class 5 ratings or cleaner.

H2 - Integrated Fan Filter Ionizer

Integrated ionizers provide a continuous stream of static-neutralizing ions to protect sensitive materials against ESD. Built-in ionizers enhance cleanliness by neutralizing charges that attract and hold particles on walls, tabletops, and other surfaces. Ionizers are known for being maintenance burdens that require frequent calibration. Unlike ionization technologies offered by Terra competitors, Terra systems require no calibration and automatically maintain a balance of ± 50 volts.

H3 - Automated Fan Filter Control & Pressure Balancing

Terra's Smart® Fan Filter Units paired with Smart® Cleanroom Control Panels adjust the fan speed up or down to “dial in” the proper air velocity, internal pressure, and air change rate. Variable fan filter control lets you balance FFU performance from one clean zone to another, ensuring that you maintain the pressure gradients and air change rates required. As the filters mature and air velocity decreases, the system lets you perform small speed adjustments that keep your cleanroom performing to spec.

H4 - Portable Fan Filter Units

ValuLine portable fan filter units are mobile, self-contained, hospital-grade HEPA purifiers mounted on a rolling stand. The small footprint, rolling stand, and plug-and-play operation allow easy transfer between rooms or departments.

H5 - NEC Class 1/Division 1 Compliant

Terra's explosion-proof fan filter units isolate fumes and vapor from any spark, hot surface, or friction-inducing electrical components.

Explosion-proof LED lights are available with a T5 temperature rating and are designed for low-profile pendant mounting to make maximum use of available space.

Division I environments contain ignitable concentrations of hazards under normal operating conditions and/or where the hazard is caused by frequent maintenance or repair work or frequent equipment failure.

Class I locations are those in which flammable vapor and gases may be present.

H6 - Remote Air Supply Connection

Terra's Laminar Flow Diffusers with HEPA Filters include a 12"-diameter collar for air supply connection for connecting the fan filter assembly to a remote air source. Threaded inserts in the top corners accommodate eyebolts to facilitate installation using suspended guy wires (order eyebolt packages separately).

H7 - 8" Tall Unit for Restricted Height Spaces

Low-profile 8"H fan filter units are ideal for cleanrooms installed within restricted height areas.

H8 - Integrated UPS Battery System

An Uninterruptible Power Supply (UPS) is a backup system that provides battery power to fan filter units when utility power is unavailable. In the event of a power outage, the UPS immediately activates without interruption and recharges when power is restored.

Smart® EC Fan Filter Units with UPS keep your FFU running long enough to safely store away contamination-sensitive materials, shut down work-in-progress, and/or switch to a backup power generator. Handy and convenient, the Uninterruptible Power Supply (UPS) provides power when and where you need it. The included external 24V battery pack offers extended battery runtime when used with the main tower UPS system.

H9 - Cleanroom Fan Filter Contaminant Collector Pan

A fan filter collector pan accumulates dust particles that dislodge from the HEPA filter, preventing contaminants from re-entering the cleanroom. Terra's collector pan integrates with bag-in/bag-out (BIBO) systems and is easily removed for cleaning or maintenance.

Bag-in/Bag-out (BIBO) modules are optional accessories for applications involving toxic fumes or biohazards. BIBO modules seamlessly integrate with the filter media system for safe filter disposal and replacement from the inside of the room for contact-free removal of filters with potentially hazardous airborne contaminants.

H10 - Fan Filter Heating Element (up to 150°F)

Heated fan filter units provide high-temperature air of up to 150 degrees Fahrenheit.

H11 - Fan Filter VOC Removal Adapter

Volatile Organic Compound (VOC) Removal Adapters require an adapter module for each FFU. The package includes an adapter housing, one charcoal pre-filter, two sanitizing modules, and one PCO panel and must be ordered together with a Terra WhisperFlow FFU.

Photo-Catalytic Oxidation Panels (PCO) remove volatile organic compounds (VOCs) remaining in the air stream after they pass the carbon filter. The PCO panel is highly efficient at vapor removal, yet imposes no restrictions on airspeed, allowing the Fan/Filter Module to maintain airspeed consistent with ISO cleanliness requirements (typically 80-100 feet/minute).

The carbon pre-filter removes volatile organic compounds (VOCs) to ensure a safe, clean processing environment. The pre-filter also helps compensate for VOC spikes that might occur during certain operations.

H12 - Fan Filter UV Sterilization Module

Terra Fan Filters Units with integrated UVC decontamination modules provide additional protection against bioaerosols and pathogenic organisms. UV-C lamps may not produce an entirely sterile surface, but they can maintain consistently low microbial loads throughout a wide range of operations and eliminate bioburden spikes that could necessitate extensive testing and decontamination measures. UV Sterilization modules are not compatible with the following FFU designs: Narrow, Explosion Proof, or Reverse Flow.

H13 - Cleanroom Leak Testing Challenge Port

Fan filter units with challenge ports provide a simple and efficient mechanism for conducting localized leak tests of each filter. Terra fan filter units are leak tested before delivery in accordance with IEST and UL 900 standards. For critical applications, the USP <797> framework requires that fan filter units undergo leak testing during initial installation, and semiannually throughout the life of the filter. Filter testing is also common in operating rooms, surgical suites, and CGMP facilities.

Leak testing requires the injection of an aerosol upstream of the filter. Fan filters with challenge ports allow for rapid and individual testing of each fan filter unit without requiring the introduction of test aerosols to the entire HVAC system. Challenge port testing is a more reliable method of ensuring that a test aerosol is uniformly applied and presents fewer variables.

I - Compatible Control Systems
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I1 - Cleanroom Fan Filter Power Distribution Module

Terra’s Power Distribution Modules (PDMs) use 3-pin or 4-pin quick connect fittings to power all FFUs and lights, regardless of the cleanroom size. The expertise of a licensed electrician is only needed to connect the main voltage to the Primary, Secondary, and Booster PDM modules; lights and fan filters are installed via quick-connect fittings without requiring hard wiring. The PDM modules must be wired to a dedicated 35A fused 120V circuit or a 30A fused 240V circuit to allow a quick fit connection of up to 5 light and 5 FFU connections per module.

I2 - Cleanroom Fan Filter Replacement Alarm System

Fan Filter Replacement Alarms provide a reliable, quantitative method for determining when HEPA fan filter media requires replacement. Automatic replacement alerts avoid costly and unexpected operational interruptions while also maximizing the working life of the fan filters.

I3 - Smart Control Panel for Filter Fan Units

Standard Control Panels provide central control and connection of lights and filters. 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. The robust system offers advanced control for up to 200 fan filter units and 16 independently controlled rooms.

An upgraded Smart® Control System allows additional environmental sensors and FFU control to meet critical performance/monitoring requirements including programmable fan speed adjustment for energy savings, performance enhancement, or remote shutdown. Easily connect additional sensors to display humidity, differential pressure, and temperature data.

J - Compatible Accessories
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J1 - Cleanroom Fan Filter Unit Mounting Frames

Stainless steel mounting frames allow fan filter units or light panels to be installed in drywall or other hard ceilings without a ceiling grid.

J2 - Cleanroom LED Lights

Cleanroom LED lights are energy-efficient, produce low heat, carry long life spans, and are compatible with ISO class 3 spaces.

J3 - Cleanroom UV Lights

Although UV-C lamps may not produce an entirely sterile surface, they can maintain consistently low microbial loads throughout a wide range of operations and eliminate bioburden spikes that could necessitate extensive testing and decontamination measures.

J4 - Cleanroom Emergency Lights

Cleanroom LED Light Panels with Built-In Emergency Batteries allow for temporary backup lighting during a power outage. When receiving power, the light operates normally and charges the emergency battery. A UL recognized emergency driver allows the LED fixture to be used for normal and emergency operation. The LED light has a red/green indicator to inform employees after power has returned and the cleanroom is safe to re-enter.

J5 - Cleanroom Ceiling Panels

Cleanroom ceiling panels cover ceiling bays not occupied by fans or lights. These panels are available in several materials that support frequent cleaning and will not absorb water or crumble like conventional gypsum ceiling panels. Chemically resistant polypropylene panels are preferable for use with most chemical solvents and acids. Stainless steel panels are typical for pharmaceutical and USP-regulated environments that require aggressive chemical sterilants or vapor treatments during cleaning regimens. Vinyl-covered gypsum is cost-effective and fire-rated but does not offer the wider chemical compatibility of other materials. All Terra ceiling panels are cleanroom appropriate for ISO Classes 5 to 8 and Federal Standard 209 Classes 100 to 100,000.

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.

Shop online to view a wide selection of fan filtration systems, cleanroom components, and controlled environment enclosures.

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