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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
Our expert team designs customized static and dynamic pass box systems to streamline material transfer and keep your cleanroom protected from contamination.
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.
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.
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.
In operating rooms, ICUs, and isolation wards, Deiiang pass boxes support safe medicine, instrument, and specimen transfer without constantly opening high‑risk doors.
Deiiang low‑leak, easy‑clean pass boxes keep wafers, PCBs, and precision components protected when moving between different ISO cleanroom zones and tool areas.
Deiiang stainless steel pass boxes simplify hygienic transfer of ingredients and tools into high‑care zones, helping reduce manual handling and airborne contamination.
For emulsions, powders, and filling lines, Deiiang pass boxes limit dust and microbial load when feeding packaging materials into controlled production rooms.
Deiiang pass boxes support ISO 7–8 cleanrooms by controlling particle transfer during sterilized component and packaging movement between molding, assembly, and packing areas.
Deiiang pass boxes offer safe, traceable transfer of reagents, samples, and small equipment between BSL and clean lab spaces, cutting unnecessary staff entry.
To start, simply select a manufacturing process and upload a 3D CAD file.
Within a few hours we'll send you design for manufacturability (DFM) analysis and real-time pricing.
Once you review your quote and place your order, we'll start the manufacturing process. We also offer finishing options.
Our digital manufacturing process allows us to produce parts in as fast as 1 day.
Deiiang is a professional supplier and manufacturer of cleanroom construction materials and equipments, providing you with comprehensive, one-stop solutions for cleanroom construction.
passbox CE Certification
Deiiang Pass Box Quality Control Flowchart
A pass box is a device used for transferring items in a sterile and uncontaminated environment. It can transfer materials between controlled environments with different cleanliness levels without affecting the cleanliness of the environment. This product is widely used in industries with very high requirements for environmental cleanliness, such as pharmaceuticals, biotechnology, and electronics.
Pass boxes facilitate the safe and efficient transfer of items, ensuring the integrity of the cleanroom while meeting essential operational requirements. They are typically equipped with HEPA filters, which can further reduce the risk of particulate matter transmission.
The pass box uses an interlocking function between the entrance and exit doors, which effectively prevents two doors from opening simultaneously, ensuring that the controlled environment area does not experience air convection and thus avoids pollution.
When delivering items, the delivery person first puts the item into the pass box at the entrance. After confirming that the entrance door is completely closed (disinfected and decontaminated), the receiver can open the exit door, thus ensuring that the item is delivered without contamination.
In addition, many types of pass boxes are equipped with additional features such as HEPA filters and UV sterilizers. These functions work in coordination to ensure that any particulate matter or pathogens attached to surfaces or in the air are filtered out before materials enter the clean environment, thus guaranteeing a high level of cleanliness.
Static Pass Box: This is a basic pass box with interlocking doors. Equipped only with ultraviolet germicidal lamps, it is suitable for transferring items between areas with similar cleanliness levels.
Dynamic Pass Box: This pass box is equipped with a fan and a HEPA/ULPA filter, making it ideal for applications requiring the transfer of items from an area of lower cleanliness to one of higher cleanliness.
Laminar Flow Pass Box: Pass box providing ISO‑style unidirectional airflow to shield critical products from particles during transfer.
Air Shower Pass Box: Pass box that uses high‑velocity filtered air jets to blow off surface particles before items enter cleaner zones.
VHP Pass Box: Pass box integrating vaporized hydrogen peroxide cycles to achieve high‑level surface decontamination of loads.
Xenon Light Pass Box: Pass box using high‑intensity xenon light pulses for fast, chemical‑free disinfection of exposed surfaces.
Pharmaceutical Pass Box: GMP‑oriented pass box with validated materials, airflow, and interlocks tailored to pharmaceutical cleanrooms.
The first step is to select a suitable installation location; we recommend installing it near the cleanroom entrance to facilitate contamination control. In addition, you must ensure that the installation area is clean and complies with the relevant technical specifications.
Next, using the provided installation accessories and instructions, secure the pass box to the wall or mounting surface, ensuring it is level and accurately aligned to prevent operational malfunctions.
As a final step, if the pass box model you purchased is equipped with features such as UV sterilization or automatic controls, you will also need to install the corresponding components. Once installation is complete, you should conduct a comprehensive inspection and test of the pass box to ensure it operates correctly and is free from any air leaks or contamination risks.
Pass boxes are typically made of durable and easy-to-clean materials, and stainless steel is the best material to meet these requirements. Stainless steel is highly favored due to its corrosion resistance, non-porous surface, and ability to withstand frequent disinfection.
In addition to stainless steel, the pass box also requires other materials, such as tempered glass for observation and inspection, and high-grade plastics that help achieve a lightweight design. Besides this, the choice of materials often depends on the specific requirements of the application, including the need for chemical resistance, thermal stability, and compliance with industry standards.
First, you should regularly check the inside and outside surfaces of the pass box for signs of wear, damage, or contamination. When cleaning, use an approved disinfectant suitable for the pass box material, and then make sure to thoroughly wipe all surfaces, including handles and sealing strips.
After cleaning, you must ensure that the pass box is properly sealed and functioning to avoid any unexpected risks. Finally, one point needs special attention: the filter must be replaced regularly as required, otherwise the filtration efficiency will be affected.
The clean environment of a cleanroom can be compromised by contaminants brought in from external items, so we must disinfect and filter the items being transported to ensure a perfectly clean environment.
The pass box is an optimal choice for filtering transferred materials, helping meet the rigorous cleanliness and contamination‑control standards required in industries such as pharmaceuticals, biotechnology, and electronics.
The standard dimensions of cleanroom pass boxes can vary depending on their intended use and design, but common sizes include:
Small Pass Box: Approximately 600 mm × 600 mm × 600 mm (24 in × 24 in × 24 in)
Medium Pass Box: Approximately 800 mm × 800 mm × 800 mm (32 in × 32 in × 32 in)
Large Pass Box: Approximately 1000 mm × 1000 mm × 1000 mm (40 in × 40 in × 40 in)
Vertical Pass Box: Approximately 600 mm × 600 mm × 1200 mm (24 in × 24 in × 48 in)
Horizontal Pass Box: Approximately 1200 mm × 600 mm × 600 mm (48 in × 24 in × 24 in)
These dimensions can be customized based on specific requirements and the volume of items being transferred, as well as the layout of the cleanroom.
