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High-Velocity Cleanroom Air Curtains

Air Curtain Air Curtain
Cat. no. 6601-47, shown mounted on
High-Speed Roll-Up Door Pass-Through
Cat. no. 6601-50A, shown mounted on
Terra Hardwall Modular Cleanroom
  • Provides a shower of micro-filtered air to remove particles from personnel and parts entering a clean room
  • Prevents influx of unfiltered air into a clean room when a door is opened
  • Select operating mode: motion sensor activation with adjustable delay or continuous operation
  • Includes adjustable air speed control
  • Adjustable discharge port width and depth accommodates varying entry sizes
  • An inexpensive alternative or enhancement to Air Showers

This High-Velocity Cleanroom Air Curtain mounts to a doorway or other wall cut-out to minimize contamination of the clean area.

A sensor mounted directly above the doorway to a cleanroom or air shower activates the unit the moment the door is opened, directing ULPA-filtered air downward at up to 1900 feet/minute (9.7 m/s) to reduce particle influx as personnel enter or exit the clean room. Discharge baffles allow adjustment of filtered air ±30 degrees from vertical, allowing you to direct the high-velocity flow away from the entrance door. This barrier of high-velocity, clean air also removes particles from clean room garb and minimizes escape of conditioned air from the clean room, reducing load on the HVAC system.

Dimensions: 48"W (1219 mm) (46", 1168 mm, discharge slot) x 17.5"D x 19"H (445 mm x 483 mm)
Housing: 304 Stainless Steel
Filters: 99.999% efficient ULPA (rated at 0.12µm particle diameter)
Power: 120VAC, 50/60 Hz, 5.3 Amp (220VAC model available)
Motor: 1745 RPM, enclosed

Cleanroom Air Curtains
Overall Dimensions, in. (mm)

Air Discharge* in. (mm)

Power Powder-Coated Steel 304 Stainless Steel
Cat. # Price Cat. # Price

48W x 17.5D x 19H (1219 x 445 x 483mm)

46W x 2.5D (1168 x 64) 120V, 50/60 Hz 6601-49 $ 3,770 6601-50A $ 3,989
220V, 50/60Hz 6601-49-220 $ 3,836 6601-50A-220 $ 3,874

69W x 17D x 19H (1702 x 432 x 483)

67W x 2.5D (1702 x 64) 120V, 50/60 Hz 6601-47 $ 3,912 6601-48 $ 3,954
220V, 50/60Hz 6601-47-220 $ 3,979 6601-48-220 $ 4,024

* Maximum width; width and depth of slot are adjustable to accommodate entry and desired air velocity

Replacement Filters
Final ULPA (99.999% efficient @ 0.12 micron particles) Cat. # Price
12" x 12" x 3" (305 mm x 305 mm x 76 mm) (2 required) 2100-29 $ 220
27.75" x 13" x 3" (705 mm x 330 mm x 76 mm) (1 required) 1681-10 $ 472
Prefilters (Spun fiberglass) Cat. # Price
12" x 12" x 1" (305 mm x 305 mm x 25 mm) (2 required) 9202-50 $ 41

Pharmaceutical, Medical Device or Food/Beverage Conveyor Air Curtains

Air Curtain
With minor modifications, these systems provide critical barrier protection over any size wall cut-out, making them ideal for conveyors passing between an environmentally controlled and uncontrolled manufacturing space.

Both length and depth of the discharge port can be adjusted to accommodate cut-out width and to modify air speed. By providing a continuous high-velocity stream of micro-filtered air, the conveyor air curtain blocks out particles and preserves temperature and humidity differentials while allowing unrestricted product transfer. The high-speed airflow even restricts the movement of chemical vapors from one side to the other.

An adustable air speed control allows you to reduce velocity to prevent dislodging small samples traveling on the conveyor.

Call Terra Universal for information on a system optimized for your application!

File Type File Name Publication Date
Manual (PDF) Air Curtain: Doc. 1800-83
24-hour sales and tech phone support, M - F
Call a Terra Cleanroom specialist direct
Hours: 5:30 - 17:30 M-F
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