Personnel and Material Decontamination Equipment

L-Shaped Cleanroom Air Shower

A 90-degree personnel air shower that turns the clean-side exit left or right for entrance layouts where a straight-through chamber will not fit.

90-Degree Route
Left or Right Exit
Corner-Fitted Footprint
Turn-Zone Airflow

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Product Introduction

An L-shaped air shower places its two controlled doorways on adjacent walls and turns the operator route inside the cleaning enclosure. Nozzles and returns follow the corner route so the turn zone remains part of the cleaning path, rather than an unused stagnant pocket. Left-hand and right-hand layouts allow the chamber to fit the existing corridor orientation.

Key Features

Adjacent door positions connect rooms around a structural corner.

Mirrored layouts suit left-hand or right-hand clean-side routing.

Corner-directed outlets maintain air coverage as the operator changes direction.

A chamfered or radiused internal corner reduces dust-retaining ledges.

Service panels can be positioned on the accessible outer face of the selected layout.

Customer Product Concerns

A 90-degree entrance needs to use the corner efficiently while preserving door clearance and adequate cleaning airflow.

A straight chamber conflicts with a wall or corridor alignment.Adjacent entry and exit openings turn traffic within one self-contained enclosure.

The inside bend becomes a low-velocity dust pocket.Corner-directed jets and a nearby return keep air moving through the turn zone.

Door leaves on neighbouring walls can interfere with each other.The chamber geometry and sequence control separate swing arcs and prevent simultaneous release.

A mirrored standard layout can put controls against an inaccessible wall.Purpose-designed handed versions locate fan access, returns and controls for the chosen orientation.

Typical Applications

Corner cleanroom entrancesRetrofit pharmaceutical suitesLaboratories with offset corridorsCompact electronics gowning rooms

Technical Parameters

Typical dimensions for a purpose-built 90-degree air shower are as follows.

Core Material	Insulated steel corner enclosure with H13 HEPA recirculation, adjustable wall and ceiling nozzles, and low-level returns
Panel Thickness	50-60 mm insulated corner wall panels
Effective Width	900-1200 mm clear passage through the 90-degree turn
Maximum Length	Up to 2500 mm overall long-leg dimension
Steel Facing Thickness	1.0-1.2 mm formed steel or SUS 304 chamber facing
Core Density	45-70 kg/m³ insulated and acoustically treated panel core
Thermal Conductivity	0.028-0.038 W/(m·K) for the composite enclosure panel
Surface Finish	White powder-coated shell with smooth stainless or coated internal corner trim
Joint Type	Sealed right-angle module joints with adjacent electromagnetically interlocked door frames
Customization	Available based on the intended application and operating environment.

Available Options

Left-hand or right-hand exitPainted steel or SUS 304 interiorSwing or automatic doorsAdditional corner ceiling nozzles

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