Air Shower Room
An Air Shower Room is a controlled entry chamber installed between a non-clean area and a cleanroom. It uses high-velocity, HEPA- or ULPA-filtered air jets to blow loose dust, fibers, hair, and particles off personnel, garments, or materials before they enter the controlled environment.
How it works
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The person or trolley enters through the “dirty-side” door.
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Both doors are electrically interlocked, so the clean-side door cannot open until the shower cycle finishes—helping preserve cleanroom pressure and reduce cross-contamination.
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Adjustable nozzles discharge filtered air at roughly 20–25 m/s across clothing and surfaces.
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Particle-laden air returns through floor/side grilles, passes through pre-filters and HEPA filtration, and is recirculated.
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Typical personnel cycles last 15–30 seconds; cargo showers may run 30–60 seconds.
Typical construction
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Body: Modular stainless steel (often SS 304) or powder-coated steel panels.
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Doors: Hinged or automatic sliding; single- or double-door configurations.
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Filtration: Pre-filter plus HEPA filter, commonly rated around 99.95–99.99% efficiency at 0.3 µm.
- Controls: PLC/microprocessor control, LED display, adjustable shower time, infrared/automatic activation, voice prompts, and door interlocking.
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Nozzle layout: Side-wall and sometimes ceiling nozzles; single-side, double-side, or three-side blowing options.
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Where it is used
Air shower rooms are common in pharmaceutical plants, biotechnology facilities, electronics and semiconductor manufacturing, laboratories, medical-device production, food processing, and other ISO-classified cleanroom operations.