Personnel and Material Decontamination Equipment

U-Shaped Cleanroom Air Shower

A folded 180-degree air shower route that returns the clean-side exit to the same side as the entrance while extending the cleaning path.

180-Degree Return Route
Same-Side Openings
Extended Air Exposure
Zoned Corner Returns

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Product Introduction

The U-shaped air shower uses two internal turns to connect both controlled openings to the same face of the enclosure. Directional nozzle zones follow the folded route, while returns at the bends collect dust close to where it is dislodged. This configuration supports facility retrofits where neither a straight nor an L-shaped transfer path can connect the gowning and clean areas.

Key Features

The folded passage puts entry and exit on one external face.

Successive cleaning zones lengthen exposure without requiring a stationary batch cycle.

Ceiling nozzles can cover garments as operators change orientation at the turns.

Returns at both bends reduce particle accumulation in internal corners.

Zoned fan sections support more even pressure across the two legs.

Customer Product Concerns

A folded route must avoid stagnant corners and prevent the remote cleaning leg from becoming a low-pressure zone.

The two connected rooms are located on the same wall with no straight route.A U-shaped enclosure returns traffic after two controlled turns.

Lint builds up in inner corners when returns are only at the entrance.Dedicated return grilles at both bends collect contamination locally.

Remote nozzle rows lose pressure through a long common plenum.Zoned blower-filter sections supply each leg through shorter duct paths.

Users may be uncertain of the direction through a folded chamber.Sequential indicators can identify entry, cleaning route and clean-side exit.

Typical Applications

Same-wall gowning connectionsSpace-constrained retrofitsPharmaceutical corridor reconfigurationControlled laboratory entrances

Technical Parameters

Representative construction ranges for a U-shaped personnel air shower are listed below.

Core Material	Multi-zone insulated steel enclosure with H13 HEPA fan sections, stainless nozzles and corner return-air plenums
Panel Thickness	50-75 mm modular wall and divider panels
Effective Width	900-1500 mm clear width along each U-shaped passage leg
Maximum Length	Up to 4500 mm overall folded enclosure length
Steel Facing Thickness	1.2-1.5 mm steel facing at dividers, returns and door frames
Core Density	60-90 kg/m³ composite mineral insulation
Thermal Conductivity	0.032-0.042 W/(m·K) for the insulated partition construction
Surface Finish	Light-colour cleanroom powder coating with abrasion-resistant corner guards
Joint Type	Bolted U-module junctions with sealed divider edges and sequence-controlled door interlocks
Customization	Available based on the intended application and operating environment.

Available Options

Clockwise or counter-clockwise routeTwo or three cleaning zonesTraffic-direction lightsEmergency release at outer doors

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