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Pass Box

Deiiang Passbox serves cleanrooms and ultra-clean work zones as a practical transfer tool.Its paired interlock double doors block air exchange that brings cross-contamination. Inside this pass box, HEPA and ULPA filters pair with UV-C lights to fully sanitize carried goods and inner surfaces.

You’ll find status lights, a simple control panel, plus sound-and-light alarms fitted on the unit.These parts allow you to monitor in real time the state of your equipment and repair unexpected malfunctions to preserve your clean workspace and guarantee maximum safety

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Need a reliable pass box solution?

Our expert team designs customized static and dynamic pass box systems to streamline material transfer and keep your cleanroom protected from contamination.

Types Of Pass Boxes

Explore Deiiang Pass Box Systems engineered for controlled airflow, low leakage, and regulatory-compliant cleanliness in pharmaceutical, healthcare, and high-tech cleanroom environments.
Deiiang Laminar Flow Pass Box provides ISO-style unidirectional airflow and HEPA/ULPA filtration to protect critical products during transfer between cleanroom zones, helping you reduce contamination risk and meet GMP/ISO 14644 requirements.
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Discover high‑performance Air Shower Pass Box solutions for cleanrooms and controlled environments. Our cleanroom pass box systems use integrated air shower technology to ensure safe, contamination‑free material transfer for pharma, biotech, semiconductor, and high‑tech facilities.
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Discover Deiiang’s Xenon Light Pass Box series, engineered for safe, contamination-controlled material transfer in modern cleanrooms. Our cleanroom pass box solutions feature xenon light technology, stainless steel construction and compliant filtration options to support pharmaceutical, biotech, electronics and medical device environments.
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Discover Deiiang VHP Pass Box solutions for high‑risk pharmaceutical and biotech cleanrooms. Integrated vaporized hydrogen peroxide (VHP) decontamination delivers high‑level bioburden reduction, safe material transfer, and compliance with global GMP standards.
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static-pass-box.webp
Static Pass Box
Non-powered pass-through box for material transfer between clean areas.
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Dynamic Pass Box
Dynamic Pass Box
Fan-filtered pass box with HEPA/ULPA for active air cleanliness control.
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Laminar-Air-Flow-Pass-Box
Laminar Flow Pass Box
Pass box with unidirectional airflow for critical product protection.
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air-shower-pass-box
Air Shower Pass Box
Pass box with air jets to blow off particles from materials.
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VHP Pass Box
VHP Pass Box
Pass box using vaporized hydrogen peroxide for surface decontamination.
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Xenon Light Pass Box
Xenon Light Pass Box
Pass box with xenon light sterilization for rapid disinfection.
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Pharmaceutical Pass Box
Pharmaceutical Pass Box
Pass box designed to meet GMP requirements in pharma cleanrooms.
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Product Feature

Deiiang aims to design and manufacture pass box systems that deliver high cleanliness, safety, intelligent control, low energy consumption and low noise.

Pass Box Range & Construction
Pass Box Range & Construction

We offer various types of Pass Boxes, including standard, air shower, and laminar flow types, available in cold-rolled steel with powder coating or 304/316L stainless steel. The interior features rounded corners, a flush structure, and an easy-to-clean surface, to ensure a high level of cleanliness.

High‑Sealing Interlock Doors
High‑Sealing Interlock Doors

The door body has been thickened and reinforced, equipped with EPDM or silicone sealing strips on all four sides, ensure excellent airtightness. Mechanical or electronic interlocks prevent both doors from opening simultaneously, it effectively blocks cross-contamination between environments and pressure fluctuations.

Double‑Glazed Viewing Window
Double‑Glazed Viewing Window

It can be equipped with a double-layered tempered glass observation window, the edges are finely polished, safe and easy to clean. Optional hollow structure with desiccant port, significantly reduces condensation and fogging.

Integrated Fan & HEPA Filtration
Integrated Fan & HEPA Filtration

Built-in dedicated fan and high-efficiency filter, quickly blow away and filter out particles from the surface of items. Optimize the air duct design to ensure uniform airflow, and control the noise, suitable for higher cleanliness levels and critical process scenarios.

Smart PLC Control & Monitoring
Smart PLC Control & Monitoring

Built-in intelligent PLC or microprocessor control system, conveniently conduct unified, multi-functional management. Sensors monitor door status and system alarms in real time, with an intuitive control panel and indicator lights, make daily use simpler, safer, and traceable.

Cleanroom‑Grade LED Lighting
Cleanroom‑Grade LED Lighting

High-brightness LED lighting integrated into the cavity, even lighting, facilitates inspection and the loading/unloading of materials.The lamp fixture has a fully sealed structure, making it dustproof and corrosion-resistant, and is easy to clean, the light is soft and flicker-free, it enhances operational comfort while ensuring a clear view of the operative field.

Low‑Noise, Stable Operation
Low‑Noise, Stable Operation

Featuring carefully selected fans, vibration damping pads, and optimized air duct design, capable of perfectly controlling the noise of the pass box. The reinforced mechanical structure and high-strength hinges ensure long-term stability and prevent deformation. The reinforced mechanical structure and high-strength hinges prevent product deformation, reduce vibration, wear, and maintenance frequency.

GMP‑Oriented Hygienic Design
GMP‑Oriented Hygienic Design

The inner cavity features rounded corners, the welds are ground smooth, and the sealing line is tight, minimize the risk of dirt and grime accumulating in hard-to-reach areas. The overall design complies with GMP and cleanroom standards, suitable for industries such as pharmaceuticals, biotechnology, and high-end electronics.

ABOUT

Learn More About Deiiang Pass Box

Aerial view of Deiiang Company
pbIkucZvf74 Pass box display

Pass box display

AqS8smZ1h_4 Introduction to various styles of pass boxes

Introduction to various styles of pass boxes

iNobwdcMc5M Operators use pass boxes

Operators use pass boxes

ajXFOayEPKg Pass box interlocking function and internal space display

Pass box interlocking function and internal space display

k9BlRlw1k0U Operators use pass boxes to pass items

Operators use pass boxes to pass items

2Yx2TiN9DU4 Air shower and pass box product display

Air shower and pass box product display

Certificate

passbox CE Certification

Deiiang Pass Box Quality Control Flowchart

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Technical Resources

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Industry Applications

Pharmaceutical-Manufacturing-Pass-Box.webp

Pharmaceutical Manufacturing

Deiiang dynamic pass boxes help protect aseptic filling and compounding by flushing particles, reducing operator traffic, and keeping GMP cleanroom zoning under tight, documentable control.

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Biotech-CellTherapy-Pass-Box.webp

Biotech & Cell Therapy

For ATMP and cell culture suites, Deiiang pass boxes cut cross‑contamination risk when moving media, bags, and samples between Grade B/C rooms and support labs.

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Hospitals & Healthcare Facilities

Hospitals & Healthcare Facilities

In operating rooms, ICUs, and isolation wards, Deiiang pass boxes support safe medicine, instrument, and specimen transfer without constantly opening high‑risk doors.

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Semiconductor-Electronics-Pass-Box.webp

Semiconductor & Electronics

Deiiang low‑leak, easy‑clean pass boxes keep wafers, PCBs, and precision components protected when moving between different ISO cleanroom zones and tool areas.

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Food-Beverage-Processing-Pass-Box.webp

Food & Beverage Processing

Deiiang stainless steel pass boxes simplify hygienic transfer of ingredients and tools into high‑care zones, helping reduce manual handling and airborne contamination.

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Cosmetics & Personal Care

Cosmetics & Personal Care

For emulsions, powders, and filling lines, Deiiang pass boxes limit dust and microbial load when feeding packaging materials into controlled production rooms.

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Medical-Device-Manufacturing-Pass-Box.webp

Medical Device Manufacturing

Deiiang pass boxes support ISO 7–8 cleanrooms by controlling particle transfer during sterilized component and packaging movement between molding, assembly, and packing areas.

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Laboratories & Research Centers

Laboratories & Research Centers

Deiiang pass boxes offer safe, traceable transfer of reagents, samples, and small equipment between BSL and clean lab spaces, cutting unnecessary staff entry.

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How to Work With Us

Requirements Consultation

Submit Requirements

Provide your site dimensions, required ISO class, and industry-specific needs (GMP, ESD, etc.) to our experts.

Technical Proposal

Custom Technical Proposal

Receive a detailed design proposal within 24 hours, including airflow strategies, material lists, and transparent pricing.

Precision Manufacturing

Modular Production

We manufacture your modular panels, HVAC units, and FFUs with strict QC to ensure full compliance with ISO 14644 standards.

Installation & Validation

Global Shipping & Setup

Fast global logistics followed by onsite installation guidance and performance validation to get you operational quickly.

compare static pass box
static pass box
VS
compare dynamic pass box
dynamic pass box

Static Pass Box

Typical: no built-in fan or HEPA filter; relies on room air and basic sealing to cut direct airflow between rooms.

Best for transfer between rooms with similar cleanliness levels (for example Class C–C, D–D, or clean corridor to a similar-grade prep room); it doesn’t “upgrade” cleanliness during transfer.

Commonly used to reduce personnel traffic and door opening, lowering particle and microbial carry-over in general pharmaceutical, electronics, and lab support areas.

Cost is relatively low, roughly 0.5–0.7 times a dynamic pass box (depending on size, material, and interlock system); no power needed in basic models.

Maintenance is simple: mainly checking mechanical interlocks, hinges, viewing windows, and sealing strips; no fan or HEPA filter replacement in standard static designs.

Dynamic Pass Box

Typical: equipped with a fan and HEPA/ULPA filter; internal airflow and cleanliness are controlled (often ISO 5–7 inside the box, depending on design).

Used for transfers from lower-grade to higher-grade areas (for example Class D/C background to Class B/C core rooms); provides active particle flushing and better pressure control to reduce contamination risk.

Can include interlocked doors, differential pressure monitoring, air-flushing or air-shower functions, and optional UV or other disinfection to cut both particles and bioburden.

Equipment cost is about 1.5–3 times that of a static pass box, driven by the fan system, HEPA filters, and control/monitoring functions.

Maintenance includes regular HEPA integrity tests, airflow and pressure verification, fan checks, and periodic replacement of filters and sealing strips to keep performance and compliance validated.

Customer feedback reflects our value—take a look at what our customers say about our products and services.

We use a Deiiang dynamic cleanroom pass box between our Grade C prep room and Grade B filling area. This company's passbox has very stable airflow, and the entrance and exit door locks can be perfectly interlocked. This product makes the transfer of items in our cleanroom faster and safer.

Michael Turner

The product arrived exactly as I expected, and we installed the static pass box in the corridor of our cleanroom production line. Thanks to this product, our cleanroom is now much safer.

Dr. Angela King

I purchased several stainless steel cleanroom pass boxes from Deiiang and installed them in the electronics factory workshop. After comparing many stores, Deiiang's pass box is still the most cost-effective, and the logistics speed is also very fast. It is worth recommending.

Thomas Mueller

I bought a Pharmaceutical Pass Box and installed it in the hospital. The nurses really like the design of this product, the door opens and closes very quietly, and the cleanliness level is also very high. It can perfectly deliver medicines to the clean area. I will consider repurchasing from Deiiang if needed in the future.

Nurse Emily Davis

Our new pharmaceutical cleanroom pass box from Deiiang has built‑in HEPA and clear status lights. Validation went smoothly, leak tests were fine, and operators found the controls very intuitive from day one.

Luca Rossi

I installed the stainless steel cleanroom pass box I purchased from Deiiang in my R&D lab. I couldn't find a small pass box of the right size from other companies, so I finally chose to have the product customized by this store. The product I received was even better than I expected. It was easy to install, of very high quality, and very sturdy.

Sofia Martinez

I tip my hat to all the Deiiang design engineers and the packaging engineers for a very impressive VHP Pass Box at a very competitive price point, that arrives intact even when the carton shows a little damage on the outside. 10⭐.

Sarah Johnson
Frequently Asked Questions (FAQ)
What is a pass box in a cleanroom?

A pass box is a device that transfers items in an uncontaminated manner. It transfers materials between areas with different levels of cleanliness in controlled environments and does not affect the integrity of those environments. The electronics, pharmaceutical, and biotechnology industries, which have stringent requirements for environmental cleanliness, greatly benefit from the use of pass boxes.

Pass boxes simplify the transfer of items and maintain the integrity of the cleanroom. Additionally, many pass boxes contain HEPA filters, which further eliminate the risk of transmitting particulate matter.

How does a pass box work?

Simultaneous opening of both doors is prevented by an interlock function. This ensures that during transfer, the controlled environment does not lose its integrity by allowing air to flow in and out.

Items are transferred by placing them in the pass box located at the entrance. After the delivery person closes the door, which is disinfected and decontaminated, the receiver is able to open the exit door to remove the item.

Pass boxes have various additional functions including HEPA filters and UV sterilizers. These features work in conjunction to eliminate any particulate matter or pathogens, ensuring a clean environment.

What are the different kinds of pass boxes?
  • Static Pass Box: A pass box with interlocking doors and UV Germicidal Lamps is a basic design for a pass box that can be used to transfer materials between areas with similar levels of contamination.

  • Dynamic Pass Box: A pass box with a HEPA/ULPA filter and a fan allows the transfer of materials from a more contaminated area to a less contaminated area.

  • Laminar Flow Pass Box: A pass box that provides ISO-style unidirectional airflow to protect critical items from contaminating particles during transfer.

  • Air Shower Pass Box: A pass box that uses high-velocity, filtered air jets to blow off surface particles before items enter a cleaner zone.

  • VHP Pass Box: A pass box with cycles of vaporized hydrogen peroxide to achieve a higher level of surface decontamination of the load being transferred is a pass box with a superior level of decontamination.

  • Xenon Light Pass Box: A pass box that uses high-intensity xenon light pulses for very quick, chemical-free disinfection of exposed surfaces.

  • Pharmaceutical Pass Box: A pass box designed for the pharmaceutical industry with GMP-compliant materials, airflow and interlocks, and which is customized to pharmaceutical cleanrooms.

How is a pass box installed?

The first thing to do is choose a good location for the installation. We suggest you put it near the cleanroom entrance to help control contamination. The area where you will put the pass box must be clean and must satisfy the requirements of the relevant standards.

Once you have the installation accessories and instructions, you can affix the pass box to the wall or the surface where it will be mounted, level it, and align it to the correct direction. This will prevent it from malfunctioning when it is used.

You will need to install additional components, if your pass box model includes additional features such as UV sterilization or automatic controls. After the installation, you should test the pass box to check for air leaks and contamination. Make sure the box functions correctly.

What materials are pass boxes made of?

Pass boxes are made of materials that are durable, easy to clean, and stable. Of these, stainless steel is the most favorable material as it is corrosion-resistant, has a non-porous surface, and can withstand multiple disinfections.

Aside from stainless steel, pass boxes contain other materials such as tempered glass for observation and inspection, and high-grade plastics that contribute to a lightweight design. However, the other materials used depend on the requirements of the application, such as thermal stability, chemical resistance, and adherence to industrial standards.

How do I maintain and clean the pass box?

You should check the inside and outside surfaces of the pass box on a regular basis to check for damage, wear, and contamination. When cleaning, you should use the disinfectant that is approved for the material of the pass box, and then thoroughly clean all the surfaces, handles, and sealing strips.

After cleaning, it is crucial to check that the pass box is properly sealed and functioning to avoid any risks. Also, the filter must be replaced on a regular basis, as indicated. Otherwise, the efficacy of the filtration will be compromised.

What is the purpose of a pass box in a cleanroom?

Contaminants from outside the cleanroom can compromise the environment, so items transported must be disinfected and filtered.

Of all the options, a pass box best accomplishes filtration of transported materials and helps satisfy the stringent cleanliness and contamination control requirements of the pharmaceutical, biotechnology, and electronic industries.

What are the typical sizes of pass boxes?

The typical sizes of cleanroom pass boxes vary based on a number of factors including their specific purpose and design, but some examples include:

  • Small Pass Box: 600 mm × 600 mm × 600 mm (24 in × 24 in × 24 in)

  • Medium Pass Box: 800 mm × 800 mm × 800 mm (32 in × 32 in × 32 in)

  • Large Pass Box: 1000 mm × 1000 mm × 1000 mm (40 in × 40 in × 40 in)

  • Vertical Pass Box: 600 mm × 600 mm × 1200 mm (24 in × 24 in × 48 in)

  • Horizontal Pass Box: 1200 mm × 600 mm × 600 mm (48 in × 24 in × 24 in)

The dimensions shown above can be adjusted to a number of other values to better suit the volume of material being transferred and the dimensions of the cleanroom being worked in.

How to choose Pass Box?

1

Application & Standards

Clarify industry and use scenario, then confirm applicable standards for the pass box, such as ISO, GMP, or FDA.

2

Transfer Process Layout

Analyze material flow and door orientation to decide installation position, opening direction, and quantity of pass boxes required.

3

Size & Load Capacity

Define maximum item size, weight, and transfer frequency to select suitable internal dimensions, load capacity, and platform height.

4

Material & Finish

Choose powder‑coated steel for cost efficiency or stainless steel for frequent disinfection, all with smooth, easy‑clean rounded corners.

5

Interlock & Control

Decide between mechanical or electronic interlocks, and whether PLC control is needed for timing, alarms, and system linkage.

6

Airflow & Filtration

Determine if you need standard, HEPA filtered, or air shower pass boxes according to cleanliness level and contamination risk.

7

Compliance & Upgrade Space

Ensure design supports GMP validation and documentation, and reserve options for later upgrades like HEPA modules or smart controls.

Follow these steps to select the ideal pass box solution for your cleanroom, process flow, and industry compliance requirements.

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