Personnel and Material Decontamination Equipment

Material Air-Shower Pass Box

A timed material chamber that uses filtered cleaning jets and return grilles to remove loose particles from compatible packages.

Directional Cleaning Jets
Timed De-Dusting Cycle
Low-Level Particle Returns
Interlocked Transfer Route

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Product Introduction

The material air-shower pass box integrates an interlocked transfer cabinet with a fan, filtration circuit and adjustable nozzles. After the loading door closes, filtered air accelerates through ceiling and side outlets towards the package. Return grilles collect displaced particles before the receiving side becomes available.

Key Features

Adjustable nozzle direction addresses upper, side and lower package surfaces.

The controller separates blow time, settling time and door release.

Low-level returns capture particles displaced from cartons and reusable totes.

Removable nozzle panels provide service access to the airflow plenum.

Fan speed can be adapted to load stability and label durability.

Customer Product Concerns

Package de-dusting requires sufficient surface air movement without damaging light loads or allowing particles to resettle.

One-sided air leaves dust on top and lower carton faces.Multi-directional nozzles are arranged around the payload volume.

Particles settle back after the cleaning blast stops.Return airflow continues through a controlled settling period.

Strong jets move light packaging or lift labels.Variable fan speed and nozzle orientation can be set for the actual load.

Operators bypass cleaning during frequent transfers.The interlock begins the timed sequence and blocks early clean-side access.

Typical Applications

Raw-material entryPharmaceutical warehouse transferElectronics containersClean garment bundles

Technical Parameters

Typical construction ranges for a material air-shower pass box are listed below.

Core Material	SUS 304 chamber with centrifugal blower, prefilter, HEPA filter, adjustable nozzles and low returns
Panel Thickness	100-180 mm nozzle-plenum and double-wall construction
Effective Width	600-1200 mm clear payload width
Maximum Length	Up to 1600 mm chamber depth
Steel Facing Thickness	1.0-1.5 mm stainless-steel facing
Core Density	35-40 kg/m³ polyurethane insulation around nozzle and filter plenums
Thermal Conductivity	0.022-0.028 W/(m·K) for polyurethane plenum insulation
Surface Finish	Brushed stainless chamber with polished nozzles and removable return grilles
Joint Type	Sealed plenum joints with interlocked gasketed doors and bolted nozzle-service panels
Customization	Available based on the intended application and operating environment.

Available Options

Two-side or three-side nozzle layoutVariable-speed cleaning airflowRoller conveyor floorAutomatic sliding doors

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