Personnel and Material Decontamination Equipment

Walk-Through Cleanroom Air Shower Tunnel

An extended modular passage that exposes walking personnel to successive filtered-air jet zones, reducing queues at high-volume cleanroom entrances.

Continuous Walking Route
Sequential Cleaning Bays
Scalable Tunnel Length
Shift-Change Throughput

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Product Introduction

The tunnel arranges a sequence of cleaning bays so operators continue walking while receiving repeated directional airflow. Each bay can contain its own blower, filter, nozzle wall and low-level return route, helping maintain coverage through the complete passage. Modular sections allow the cleaning distance to suit planned walking speed and entry volume.

Key Features

Successive nozzle bays extend cleaning exposure along the walking route.

Dedicated fan-filter modules avoid a long common pressure path.

Low-level returns run continuously along the tunnel to remove released particles.

Panelised bay sections make it possible to extend the passage in stages.

One-way indicators can support orderly high-volume personnel flow.

Customer Product Concerns

A continuous system must give personnel sufficient exposure time without allowing cleaning airflow to decay at the far end of the route.

Fast walkers receive too little cleaning exposure.Tunnel length and active-zone count can be selected for the planned walking speed.

A central blower loses pressure over a long passage.Each bay uses a short dedicated pressure loop with its own fan and final filter.

Released dust travels toward the clean exit with continuous traffic.Distributed returns remove contamination within each cleaning bay.

A long enclosure is difficult to bring into an existing building.Panelised modules can be transported separately and joined at the installation location.

Typical Applications

Semiconductor shift entryLarge electronics plantsPharmaceutical campus gowningHigh-volume food hygiene entrances

Technical Parameters

Common modular construction ranges for a walk-through personnel tunnel are listed below.

Core Material	Repeated powder-coated steel cleaning bays with centrifugal fans, H13 HEPA filters and adjustable stainless nozzles
Panel Thickness	50 mm insulated modular wall sections
Effective Width	900-1500 mm clear walking passage width
Maximum Length	Up to 10000 mm assembled tunnel length using repeated modules
Steel Facing Thickness	1.0-1.2 mm formed steel facing with reinforced module junctions
Core Density	45-65 kg/m³ composite insulation and acoustic infill
Thermal Conductivity	0.029-0.038 W/(m·K) for the selected modular panel core
Surface Finish	Continuous white cleanroom powder coating with stainless wear trim
Joint Type	Gasketed bolted tunnel-bay joints with aligned nozzle plenums and sealed return channels
Customization	Available based on the intended application and operating environment.

Available Options

Two to ten cleaning modulesContinuous or zoned fan operationOne-way traffic indicatorsEmergency side-exit modules

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