Because of their panel design, softwall cleanrooms cannot control pressure, humidity or temperature levels inside the enclosure, making them unsuitable for certain applications that require strict control. They are also more difficult to clean than other designs.
If pressure, humidity and/or temperature control or frequent cleaning and sterilization are required, Terra recommends selecting a hardwall modular cleanroom. For any questions regarding your application, please speak with a Terra representative.
Ordering Information
This chart suggests FFU quantities to meet ISO requirements for common cleanroom sizes; call for more information, or use Terra’s QuickQuote form to convey your custom ISO 5/Class 100. A complete system includes one or more Power Distribution Modules, which provide power to ceiling lights and Fan/Filter Units.
No. of Fan/Filter Units to Meet ISO 14644-1 (FedStd 209E) Requirements
Declaration of UL Listing
For applications requiring UL-listed products, you must request a declaration of system listing under UL File E472687 at the time of order, which covers all high-voltage Modular Cleanroom electrical components integrated into Power Distribution System. UL listing helps meet municipal and other permitting requirements that may apply, while ensuring the safety and integrity of electrical components.
Night Service Switch
Energy-saving mode saves 25% of fan operating costs by reducing power consumption during off-hours
Maintains round-the-clock cleanroom integrity at lower cost
Easy to activate via panel-mounted switch (Wireless Cleanroom Control System also available)
Terra cleanrooms are designed to meet a specified ISO cleanliness rating while in use: with operations in progress, process machinery humming, and personnel in motion. So why maintain that level of performance when a production shift ends and personnel leave for the day?
A cleanroom at rest maintains its target ISO cleanliness standard with much less airflow, fewer air changes—and decreased power consumption. Terra’s Night Service Switch activates a separate operation circuit that drops all Fan/Filter Units (FFUs) into low-energy operation mode, shaving 25% of energy costs from your power bill while maintaining uninterrupted cleanroom performance at your specified cleanliness level (see chart below). With Terra's Night Service Switch, operators can save up to 7,000 kilowatt-hours per year based on a cleanroom system utilizing 10 FFUs.
Operation Setting
Airflow: cfm (m^3/hr)
Air Speed: ft/m (m/s)
Run Amps (Watts)
High Speed
808 (1373)
115 (.58)
4.3 (512)
Medium Speed
717 (1218)
102 (0.51)
3.5 (416)
Night Service
654 CFM (1111)
93 ft/min (0.47)
3.3A (393W)
Determining the Gap between Panel or Strip Shields and Floor
All softwall cleanrooms require some gap between the panel and the floor to allow air to escape. If this gap is too small to accommodate the flow of air generated by the ceiling filter fans, then panels and strips will billow outward. If it is too large, the cleanroom will not maintain adequate positive pressure.
Use formula to determine the gap: Gap in Feet = (Number of FFUs * 8 sq. ft. (0.74 m2) / Room Perimeter
Example: Take a clean room 16’ x 16’ x 7’ (4877 mm x 4877 mm x 2134 mm) high with 7 FFUs. The FFU surface area is 56 sq. ft. (5.2 m2), 7 FFUs * 8 sq. ft. (0.74 m2). The room perimeter is 64 feet (20 m) 16 ft.(4877 mm)* 4 (1219 mm). The gap is .875’ (27 mm). 56 sq. ft./64 ft. (5.2 m2/ 19.5 m), or about 10" (254 mm). Order panels or strip shields 6 ft. (1829 mm) long.
Custom Work is No Problem!
Modular designs take the hassle and expense out of custom configurations – just let us know your requirements!
Terra Universal designs, builds, and installs cleanrooms tailored to a wide range of applications. Each cleanroom is specifically engineered to meet unique user requirements, including ISO rating and environmental control, for industries such as medical devices, semiconductors, defense, pharmaceuticals, biotechnology, and aerospace. As a pioneer in the critical environment industry, Terra Universal has developed and manufactured innovative solutions for over 45 years. Combining high-throughput, automated fabrication equipment with a robust, active stock of raw material, Terra is capable of producing cleanrooms of any design, size, scope and complexity at industry-leading build times. We have built and installed over 2,000 cleanrooms in the past 6 years.
Browse and shop our Universal™ online store for the largest selection of modular cleanrooms that are in-stock and ready to ship. Not sure what you need? Contact us via phone, web chat, or email for help finding the perfect solution for your unique application.
2 Voltage1 Airflow Design1 Certified ISO Grade Design3 Max # of FFUs9 Inside Width6 Inside Depth3 Inside Height2 FFU Position1 ISO Rated Air Cleanliness
Directs a uniform, clean stream of air from the back of the hood toward the operator. Minimizes turbulence from air striking the work surfaces. Open front allows unrestricted air flow and unrestricted access to the work surface.
Vertical
Directs a uniform, clean stream of air downward toward the work surface. Front-mounted sash enhances laminar flow and protects operators face from exposure to fumes and powders. Requires less floor space than horizontal laminar flow hoods.
Terra’s modular designs allow versatile configurations using standard components, whether you need a small equipment enclosure or a multi-suite processing facility
Versatile plug-and-play Power Distribution Modules allow addition of ceiling fan/filter units and lights to meet any cleanliness requirement or to upgrade ISO levels or lighting levels after installation
Modular frame and panel designs, in several application-specific materials, adapt to unique floor plan requirements
Extended-depth models allow you to double standard ValuLine sizes, with next-day delivery
Terra’s full engineering services adapt designs to accommodate unique equipment or facility integration challenges
Call or submit a QuickQuote Form for assistance with a modular cleanroom tailor-made to your application!
Critical Environment Solutions
Terra's mission is to help customers in highly regulated industries transform the world with critical environment solutions that improve health, safety, performance, and yields. These environments may comply with stringent UL, ISO, IEST, ASTM and OSHA standards and local requirements.
Long Running FFU Motors
Terra’s filter fan unit motors are rated for 5 years of continuous, 24/7 operation, if the HEPA filters are consistently replaced. To accurately monitor your HEPA filter’s saturation levels, purchase Terra’s audible and visual filter replacement alarm system.
Softwall Cleanroom Instrument Enclosure
Softwall modular cleanrooms create clean, economical equipment enclosures; model shown used to protect particle-sensitive samples and analytical instruments.
Explosion-Proof Softwall Modular Cleanroom
Explosion-Proof Softwall Cleanrooms feature sealed conduit and junction boxes leading to the explosion-proof lights and FFUs, in compliance with NEC code for Class I, Division 1 environments
Portable Particle Containment Room
Containment Room isolates dirty operations inside a lab or cleanroom; reverse-flow HEPA fan/filter units contain dust to allow clean air release.
Softwall Cleanroom Control Panel
The control panel features separate key-switches for blower operation and the Night Service switch, as well as a standard light switch
Cleanroom Softwall Panels and Strip Shields
60-mil softwall strip shields and 40-mil softwall panels comprise the walls of a softwall modular cleanroom; stip shields provide a convenient, low-cost entry.
Seismic Safe Cleanroom Design
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.
Highest Standards For Electronic Components
Terra’s electronic components are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.
Stocked Pre-Fabricated Cleanroom Components
Since each pre-engineered cleanroom component is tested and stocked, room pre-assembly is no longer required. Our lead times consist solely of the time it takes draw, package and ship the components to you.
4,000 Worldwide Cleanrooms
Since 1976, Terra has designed and manufactured over 4,000 cleanrooms for companies at the leading edge of high technology
Complete Order Transparency
Using Terra’s OnTrak system, our customers can view real-time production updates, receive shipment notifications and track their orders until they arrive at their facility
Comprehensive Service Provider
Terra’s portfolio of services includes white glove delivery, product installation, equipment certification, validation documentation, cleaning and disinfection services, engineering consultation, and structural seismic analysis
Pre-Fabricated Softwall Modular Cleanrooms
Softwall Cleanroom Installation Timelapse
Installed ValuLine® Softwall Cleanroom with Top Trim
ValuLine® Softwall Cleanroom Installation with Gowning Room
Explosion-Proof Softwall Modular Cleanroom
Curtain Panel; Clear Polysim Panel, 40 mil, 10'H
ISO 8 Softwall Modular Cleanroom
Terra's ValuLine® Softwall Modular Cleanrooms offer an affordable, quick install solution for conversion of any area into a compliant ISO-grade cleanroom | 6600-PP-07 displayedSoftwall Cleanroom Installation TimelapseTerra's ValuLine® Softwall Modular Cleanrooms offer an affordable, quick install solution for conversion of any area into a compliant ISO-grade cleanroom. We design, build, stock, and install cleanrooms for every application.
ISO 7 ValuLine® pre-configured softwall cleanroom for quick, compliant, assembly; Customize ISO rating for cleanroom components to ensure entire cleanroom is up to production cleanliness standards.
Expanded softwall cleanroom formed by combining two 12'W x 12'D cleanrooms. Combine pre-configured standard cleanrooms to create cleanroom work space sizable to any application.
Pre-configured ValuLine® cleanroom for quick assembly;Terra's ValuLine® products offer the same high-quality cleanroom standards without compromising an affordable price.
Softwall modular cleanroom for manufacturing in precision die-cutting industry. Pre-drilled, pre-kitted components for easy and quick industry-ready installation.
ValuLine® Softwall Cleanroom Installation with Gowning Room
ValuLine® softwall cleanroom installation with dedicated gowning room provides effective particulate control. The economical design features a powder-coated steel structure and flexible curtain walls for rapid installation and easy reconfiguration.
ValuLine® Softwall Cleanroom Installation with Gowning Room
ValuLine® softwall cleanroom installation demonstrates cost-effective contamination control with a dedicated gowning area. The modular design with powder-coated steel frame installs rapidly and allows for future reconfiguration while maintaining ISO compliance.
ValuLine® Softwall Cleanroom Installation with Gowning Room
ValuLine® softwall cleanroom installation offers ISO-compliant particle control with an integrated gowning area. The system’s powder-coated steel structure and static-dissipative curtains provide an economical alternative to traditional hardwall construction.
Explosion-Proof Softwall Cleanroom: fan/filter units, lights and power system are UL-listed for hazardous locations (optional casters and cross-bracing).
Explosion proof walls are utilized for hazardous locationsExplosion-Proof Softwall Modular CleanroomExplosion-Proof Softwall Cleanroom: fan/filter units, lights and power system are UL-listed for hazardous locations (optional casters and cross-bracing).
ISO 8 Softwall Modular Cleanroom, 8' x 8', with dissipative vinyl panels and strip shields | 6600-68A displayedISO 8 Softwall Modular CleanroomSoftwall Modular Cleanroom, 8' x 8', with static-dissipative vinyl panels and a strip shield entry.
