Pass Boxes & Clean Benches

Safe material transfer and localized clean working zones.

Move Materials Safely. Work in Clean Air.

Every time materials cross between clean and semi-clean zones, they carry contamination. A pass box is the controlled doorway that keeps the two sides separated — and a laminar flow bench gives your operators a localized clean zone for critical work. Both are built to your room class, your process and your audit.

VHP Decontamination Pass Box

Vaporized hydrogen peroxide pass box for sterilizing items entering sterile production areas.

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Floor-Standing Laminar Flow Pass Box

Floor-standing pass box with laminar airflow for transferring large items or carts.

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Self-Cleaning Pass Box

Pass box with internal air recirculation, pressure gauge and control system to avoid cross-contamination.

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Horizontal Laminar Flow Clean Bench

Workbench providing a continuous HEPA-filtered clean air stream for sample handling, assembly and inspection.

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What Customers Ask First

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Pass Box vs Airlock

A pass box is for small items with interlocked doors; an airlock is a walk-in room. Most pharma lines use pass boxes for components and an airlock for people.

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VHP for Sterile Areas

VHP pass boxes use vaporized hydrogen peroxide to sterilize the chamber surface between transfers — essential for aseptic filling and isolator lines.

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Laminar Flow Grade

Pass boxes and benches are built to ISO 5 laminar flow in the working zone — the air inside is cleaner than the room around it.

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Material & Finish

Stainless steel interiors for pharma, powder-coated for food. Sanitary radius corners and no ledges for easy cleaning.

Typical Specifications

Model	Chamber (W×D×H, mm)	Airflow / Process	Door	Key Feature
VHP Pass Box	600×600×600 / custom	VHP cycle	Interlock	Sterile transfer
Floor-Standing Laminar Pass Box	1000×800×900 / custom	Laminar ISO 5	Interlock / roller	Large items, carts
Self-Cleaning Pass Box	600×600×600	Recirculating HEPA	Interlock	Pressure gauge, control
Horizontal Laminar Bench	1200 / 1500 / 1800 wide	Laminar ISO 5	—	Clean working zone

Model

Chamber (W×D×H, mm)

Airflow / Process

Door

Key Feature

VHP Pass Box

600×600×600 / custom

VHP cycle

Interlock

Sterile transfer

Floor-Standing Laminar Pass Box

1000×800×900 / custom

Laminar ISO 5

Interlock / roller

Large items, carts

Self-Cleaning Pass Box

600×600×600

Recirculating HEPA

Interlock

Pressure gauge, control

Horizontal Laminar Bench

1200 / 1500 / 1800 wide

Laminar ISO 5

—

Clean working zone

Where They Are Used

✔ Aseptic & sterile manufacturing — VHP pass boxes for component transfer

✔ Pharmaceutical & biotech — laminar pass boxes between classified zones

✔ Food laboratories — clean benches for sample preparation and analysis

✔ Electronics & optics — laminar benches for assembly and inspection

Frequently Asked Questions

What is the difference between a pass box and a clean bench?

A pass box transfers materials between two zones without opening both doors at once. A clean bench provides a localized ISO 5 laminar airflow zone for open processing. Many facilities need both.

Does a VHP pass box need utilities?

Yes — power for the generator and a small air supply. We can integrate the VHP cycle controls into your room's BMS for full traceability.

What sizes can you make?

Standard sizes are stocked, but we make custom chambers for unusual items — tell us your largest component and we design around it.

Are pass boxes tested before delivery?

Yes — each unit is leak-tested and airflow-tested at the factory, and we can supply the test certificate for your qualification file.

Need a transfer or working-zone solution?

Tell us what you transfer (item sizes, volumes) and your cleanroom class — we will recommend the right pass box or bench and quote it with certificates.

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