A pass box is a piece of auxiliary equipment for cleanrooms, primarily used for the transfer of materials between clean areas or between a clean area and a non-clean area. It serves to minimize the frequency of door openings in the cleanroom, thereby reducing contamination to the lowest possible level.
Product Features
- The exterior is made of high-quality stainless steel (or painted steel) sheets, precisely bent and welded to form a structure that is smooth and clean.
- The interior is constructed of stainless steel for easy cleaning.
- The interior and exterior surfaces are completely flush, offering an aesthetically pleasing design that prevents dust accumulation.
- Equipped with an interlocking function to prevent both doors from being opened simultaneously.
Applications
Widely used in pharmaceutical, biotechnology, and electronics industries, as well as hospitals and research laboratories. Ideal for transferring materials between classified clean areas or between clean and non-clean environments to maintain process integrity.
Parameters
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Name |
Pass box |
Air Shower Pass Box |
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Overall Dimension W*D*H(mm) |
770*680*700 |
970*880*900 |
950*680*1500 |
1150*880*1700 |
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Air Shower Area W*D*H(mm) |
600*600*600 |
800*800*800 |
600*600*600 |
800*800*800 |
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Nozzle Air Velocity |
None |
None |
23m/s±20% |
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Embedded 360° Adjustable Nozzles |
None |
None |
4 pcs |
6 pcs |
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Control System |
None |
None |
Microcomputer Integrated Control, Shower Time 1-99S, Double-door Electronic Interlock |
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|
Filtration System |
None |
None |
High Efficiency Filter (Efficiency ≥99.99%@0.3μm), Primary Filter (Efficiency G4) |
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Material |
Cold-rolled Painted Steel Plate (Surface Coating Treatment)/Stainless Steel Plate |
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Viewing Window |
Transparent Tempered Glass |
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Lighting |
None |
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Power Supply |
220V/380V/50HZ |
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Customizable |
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FAQ
Q: What is the difference between a standard pass box and a dynamic pass box?
A: A standard pass box is used for simple physical transfer, relying on surface decontamination. A dynamic pass box is equipped with a HEPA filter and fan, providing unidirectional airflow (cascading pressure) to purge airborne particles from the material surface, preventing cross-contamination.
Q: What is the purpose of the interlocking system?
A: The interlock ensures that only one door can be opened at a time. This prevents both rooms from being directly connected, thereby maintaining the pressure differential and preventing contaminated air from entering the clean area.
Q: Do you provide customization for different sizes?
A: Absolutely. While we offer standard sizes (e.g., 600x600x600mm), we can customize the chamber dimensions according to your specific material transfer requirements and wall thickness.
Q: How do I clean the pass box? Can I use corrosive disinfectants
A: Yes. The interior and exterior are made of high-grade stainless steel (SUS304), which is highly resistant to corrosion. You can safely use common disinfectants such as alcohol, hydrogen peroxide, or peracetic acid for routine wiping and sanitization.