Pass Box
Your Professional Pass Box Supplier!
Suzhou Huazhijie Purification Technology Co., Ltd., was established in 2012. With strong technical strength and advanced equipment, it can provide high-quality products, professional services and comprehensive solutions for the high-efficiency air purification industry. Our products include primary-efficiency filter cotton, medium-efficiency filter bags, primary, intermediate and high-efficiency filters, FFU, air showers, transfer windows, static pressure boxes and purification workbench and other purification equipment, HPEA products, activated carbon filters, chemical Filters, high temperature resistant filters, replaceable and washable filters, etc.
Why Choose Us
Customized Service
We provide personalized air purification solutions tailored to your needs. We tailor air purification systems to meet your unique air purification needs, taking into account factors such as the spatial layout, pollutant types, and concentrations of each location.
Professional Team
We employ a team of engineers and technicians with extensive expertise and experience in air purification. They continuously research and develop new air purification technologies and products to meet the increasingly diverse needs of the market.
Advanced Equipment
We are equipped with cleanroom production lines, a state-of-the-art R&D center, and sophisticated testing equipment, ensuring efficient and precise production.
Patent Certificate
We have successfully obtained ISO 9001:2015 quality management system certification, comply with ISO 9001 standards, and have also obtained multiple patents.
Specification
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External Size(W*D*H)mm |
660*570*1000 |
760*670*1100 |
860*770*1200 |
660*570*580 |
760*670*680 |
860*770*780 |
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Internal Size(W*D*H)mm |
500*500*500 |
600*600*600 |
700*700*700 |
500*500*500 |
600*600*600 |
700*700*700 |
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Material |
304 stainless steel |
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Interlock |
Electronical |
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UV Lamp |
8W*1 |
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HEPA Filter |
Efficiency≥99.995% at 0.3μm |
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Clean Air Speed |
0.36~0.54m/s |
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Power Supply |
220V, 50Hz; 110V, 50/60Hz |
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Gross Weight(Kg) |
80 |
100 |
120 |
55 |
70 |
90 |
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Packing Size(W*D*H)mm |
780*700*1250 |
880*800*1350 |
980*900*1450 |
780*700*770 |
880*800*870 |
980*900*970 |
Minimize airflow and air pressure disruption: Pass boxes prevent significant disturbances caused by frequent door openings in cleanrooms, maintaining optimal air quality.
Reduce personnel movement: They decrease the frequency of personnel entering and exiting the cleanroom, minimizing dust introduction.
Enhance hygiene: Equipped with UV lamps for bacterial control, pass boxes contribute to a clean and sterile environment.
Prevent cross-contamination: Interlocked doors ensure only one door remains open at a time, preventing direct contact between connected zones.

Types of Pass Boxes
Standard Pass Box
● Designed for general material transfer
● Equipped with basic safety features
Biological Pass Box
● Specifically designed for handling biological samples
● Features enhanced contamination control measures
Radioactive Pass Box
● Designed to safely transfer radioactive materials
● Equipped with radiation shielding and monitoring systems
Basic Principles of Pass Box
A pass box operates on a simple yet effective principle. It consists of two chambers separated by a partition with doors on each side. When an item needs to be transferred from one chamber to the other, it is placed in one of the chambers, and the doors are closed. The item can then be accessed from the other side without direct exposure to the external environment.
Applications of Pass Box
Pharmaceutical
Pass Boxes are used to transfer materials between different areas in a pharmaceutical manufacturing facility, such as the compounding area and the filling area.
Electronics
Pass Boxes are used to transfer components and materials between different areas in an electronics manufacturing facility, such as the assembly area and the testing area.
Food and beverage
Pass Boxes are used to transfer food and beverage products between different areas in a food processing facility, such as the preparation area and the packaging area.
Healthcare
Pass Boxes are used to transfer medical supplies and equipment between different areas in a healthcare facility, such as the operating room and the sterile processing department.

● We should check whether the interlock system works properly. If not, contact the manufacturer/supplier or professionals to repair the pass box.
● The service life of UV light is 4000 hours. Be aware of the working performance of UV light. If UV light is out of order, it should be replaced instantly.
● When it comes to dynamic pass box, flter maintenance is necessary. Pre-flter (like G4) needs replacing every 6 months. HEPA flter needs replacing every 6-12 months.
● Check the dfferential pressure gauge on dynamic pass box regularly to monitor the flter integrity.
● Any maintenance activities must ensure the cleanliness of cleanroom.
Packaging and Shipping
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Packaging |
Wooden box, PE film |
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Transportation methods |
Road transport, rail transport, sea transport, air transport |
Our Certificate

FAQ
As one of the leading pass box manufacturers and suppliers in China, we warmly welcome you to wholesale discount pass box made in China here and get quotation from our factory. All our products are with high quality and competitive price.
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