Powder Containment Booth—
Modular (BioSafe^®) Cleanrooms

304 Stainless Steel Powder Containment Room, shown with optional Magnahelic® Differential Pressure Gauge

Rear-mount manifold draws air away from work area into ceiling HEPA filter unit

Cleanroom Client List Dozens of customers for Terra modular cleanrooms

• Recirculation module creates a HEPA-filtered clean zone
• Rear-mounted air vents draw air and powders away from operator and work area
• Rear manifold recirculates air through inlet HEPA filters to ensure a continuous wash of particle-free air to the work area
• Air conditioning and dehumidification modules maintain precise environmental conditions
• Broad access area, with parting vinyl strip shields, allows easy access, even pallet loading of large container
• BioSafe^® all-steel construction ensures a strong, freestanding structure that is easy to clean and sterilize
• Add ceiling filter/fan units to meet cleanroom conditions throughout the room
• Available in 304/316 stainless or powder-coated steel

Terra's Powder Containment Room combines many benefits of a modular cleanroom and biological safety cabinet, including a filtration system that maintains cleanliness levels to Class 10 (ISO 3).

Unlike conventional cleanrooms, it features a versatile air handling system that lets you configure the working space for your requirements.

Neutral Pressure Room: 100% Air Recirculation (Fig. A Below)

Configured as a neutral pressure room, this system ensures 100% recirculation of exhausted air and complete protection of the external environment.

An outlet filter/blower module recessed in the wall at the rear of the processing area draws air away from the operator into dual HEPA outlet filters, which contain any airborne chemical powder. These filters can be discarded or processed for chemical reclamation.

Outlet air then passes through a make-up air duct and back into the ceiling filter/fan unit mounted on the ceiling. Filtered air flows downward from above the work area at a speed of about 90 feet/minute (.5 m/s), in accordance with cleanroom standards.

Positive Pressure Room: Filter/Fan Units (Fig. B Below)

This additional protection optimizes product purity by controlling airborne aerosols, microbes, and other submicron particles.

Ceiling filter/fan units (FFUs) create a positive pressure inside the room that blocks the inrush of contaminants. FFUs can be positioned at the access area to form a contamination barrier, or uniformly throughout the ceiling grid to create laminar airflow.

Negative Pressure Room: Exhaust Ventilation (Fig. C Below)

For additional protection of personnel inside the room, the CleanZone Recirculation System lets you adjust the percentage of air recirculated into the containment room.

By exhausting a portion of the air drawn into the filtration system, you create a negative pressure that pulls air away from the operator. A flanged adapter panel, either with or without adjustable damper, lets you duct exhausted air to an in-house ventilation system. Terra's Air Handling Modules include a high-volume fan and filter for ductless ventilation.

A four-foot (1219 mm) opening on the shorter wall accommodates one of Terra’s standard door options. Standard height is 7' (2134 mm) from filter face to floor (8'3", 2530 mm, overall, including filter/fan units), allowing placement beneath standard 9' (2743 mm) ceilings. Indicate other desired heights.