Air Shower Pass Box‌

An air shower pass box is a cleanroom equipment designed for transferring small items between areas of different cleanliness levels, minimizing door openings and contamination risks. Key details include:

1. Definition & Function

• ‌Basic Definition‌: It uses purified airflow to remove dust particles from item surfaces. Constructed with a housing, fan, HEPA filter, and control system, it is widely used in electronics, pharmaceuticals, food industries, and other high-cleanliness environments
• ‌Core Function‌: During transfers, high-speed clean airflow (≥20 m/s) is sprayed onto items to dislodge particles. The airflow is then filtered and recirculated to maintain air quality in clean zones

2. Structure & Working Principle

1. ‌Key Components‌:

   • ‌Dual Lifting Assembly‌: Utilizes motors and synchronized pulleys for smooth, automated door operation with object-position sensing
   • ‌Air Shower System‌: Includes a fan, HEPA filters (≥99.99% efficiency), and stainless steel nozzles to generate high-speed airflow
   • ‌Control System‌: Features infrared sensors, 485 communication interfaces, remote monitoring, and stall-current adjustment for anti-pinch safety

2. ‌Workflow‌:

   • Infrared sensors trigger the air shower upon item placement.
   • Electronically interlocked doors prevent simultaneous opening to avoid cross-contamination
   • Optional UV lamps or rollers enhance compatibility with diverse operational needs

3. Technical Features

• ‌High Efficiency‌: ≥20 m/s airflow velocity combined with H14-grade HEPA filters ensures optimal particle removal
• ‌Smart Control‌: Auto-sensing activation, remote operation, and real-time monitoring reduce manual input
• ‌Safety‌: Electronic interlocks, anti-pinch mechanisms, and stainless steel options improve durability and safety
• ‌Customization‌: Rollers, pressure gauges, intercoms, and other add-ons adapt to short-/long-distance transfers

4. Applications & Advantages

• ‌Typical Use‌: Cleanrooms, labs, sterile production lines, and other contamination-sensitive settings
• ‌Integration‌: Works with air shower rooms to isolate personnel and item transfers, forming a complete contamination barrier
• ‌Key Benefits‌: Reduces human-induced contamination, lowers energy consumption (auto start/stop), improves efficiency, and enables intelligent operations

5. Example Technical Specifications

Shenzhen ZhongJian South Environment Co., Ltd was founded in 2003.

Which is the only high-tech technology company in Southern China with CNAS certification

We are mainly engaged in Designing Manufacturing, Testing & Verification, Manufacturing Processes and Quality Control, Engineering & Installation and After-Sale Service of clean room and devotes to control and treatment of air PM2.5, formaldehyde, benzene, VOC and other toxic and hazardous substances.

Our main clean room products and equipment include air filter, air shower/cargo shower room, high efficiency air outlet, FFU, AMC chemical filter.

We serve chip microelectronics, data centers, chemical laboratories, new energy, medical devices, pharmaceutical manufacturing, food and beverage, cosmetics, biotechnology, precision instruments, aerospace and other industries. The business fields involve clean room products and equipment, air micro-pollution services, clean design and installation, including household fields, commercial fields, industrial fields and animal husbandry fields.

We won good reputation in this industry. Products and services are highly acknowledged and recommended by customers, we hold strong influence and competitiveness in the market as well. With the mission of being the leading enterprise in Control and Treatment of Air Micro-Pollution, We strive for the leapfrog development of products, technologies and services in Spirit of The Pioneering, Innovative, Combatant and Progressive. We would constantly bring forth new ideas in the innovation and development with protection and sustainable China's environment.