High-Volume Exhaust Fans

Negative-pressure containment BioSafe® cleanroom, showing return ducts to ceiling-mounted exhaust fans.

• Adjustable high-volume fans allows precise regulation of pressure inside a cleanroom or other enclosure
• HEPA-filtered model removes sub-micron powders and other particles to protect the external environment
• Ideal for operations with hazardous materials that require negative pressure inside the controlled environment
• Optional power control allows remote adjustment of fan speed to simplify air balancing

These high volume exhaust fans convert any enclosure into a negative-pressure room that safely contains biological materials, pharmaceutical powders, and other potential environmental hazards.

Typically, exhaust air from the laminar-flow cleanroom is passed to the exhaust fan by means of take-up ducts located along the room perimeter (see illustration). By adjusting the high-volume fan, you can regulate the amount of air exhausted from and recirculated into the room to control the internal pressure. Recirculated air passes back into the room via a ceiling plenum chamber.

No. 6602-45: 3-phase model can be remotely controlled

3-Phase High-Volume Exhaust Fan

No. 6710-67

Floor-Mount High-Volume Exhaust Fans

Ceiling-Mount Exhaust Fan
These exhaust fans are ideal for operations that generate chemical fumes or airborne contaminants. Exhausted air can be ducted or filtered for release.

Select HEPA/ULPA filters for removal of fine powders and other particles. If ducting is required, specify flange size. Based on your room size and ventilation requirements, a Terra application specialist will help you select the size and quantity of modules below to provide effective ventilation.

High-Capacity, HEPA-Filtered Exhaust Fan

• Provides a high-volume flow of HEPA-filtered air (3000 CFM average (5100 m³/hr)
• Ideal for a wide range of critical environment applications—
  • decontamination of surgical zones, even field surgical tents
  • emergency ventilation of contaminated facilities
  • creation of clean zones within an existing clean room

Terra's High-Capacity Exhaust Fan provides up to 3200 CFM (5440 m³/hr), 3000 CFM (5100 m³/hr) average, of HEPA-filtered air. In a positive-pressure system, it provides particle-free air to a remote enclosure, creating a clean environment in nearly any space. Used as a ventilator, it removes sub-micron particles, including aerosols and most bacteria, from an exhaust flow to allow safe indoor release. Dimensions: 30"W x 48"D x 31"H (762 mm x 1219 mm x 787 mm), 67" (1702 mm) with built-in stand. Stainless steel housing.