Compared to a Static Pass Box, it has larger external dimensions for the same internal size and a higher manufacturing cost. Dynamic pass boxes are divided into two subtypes: Laminar Flow Pass Box, which provides vertical laminar airflow in a top-supply

The Cleanroom Aluminum Pass Box is a material transfer device installed between clean and non-clean areas, or between zones of different cleanliness levels. Its primary function is to minimize cleanroom door openings during material transfer, prevent cross-contamination, and maintain the cleanliness classification of different areas. Constructed with an aluminum alloy frame, the pass box offers lightweight design, corrosion resistance, aesthetic appearance, and durability. It is widely used in pharmaceuticals, biological laboratories, electronics manufacturing, food processing, and other industries requiring strictly controlled clean environments.

The Static Pass Box, also known as Static Transfer Window, is a material transfer device installed between clean and non-clean areas or between zones of different cleanliness levels. Unlike dynamic pass boxes that incorporate fans and filters, the Static Pass Box contains no powered devices and relies solely on physical isolation and interlocking mechanisms to achieve safe material transfer between areas of different cleanliness levels. The Static Pass Box offers advantages including simple structure, low cost, easy maintenance, and noise-free operation. It is a fundamental material transfer device for cleanrooms and is widely used in pharmaceutical, biological laboratory, electronics manufacturing, and food processing industries.

The VHP Pass Box (Vaporized Hydrogen Peroxide Sterile Pass Box) is a sealed transfer device designed for biological decontamination of material surfaces. Using Vaporized Hydrogen Peroxide (VHP) as the sterilizing agent, it operates at low temperature and atmospheric pressure to achieve high-efficiency surface sterilization. It is ideal for transferring items from low-grade clean areas to high-grade clean areas. This equipment addresses the inadequate sterilization effectiveness of traditional UV pass boxes, achieving Log6 kill rate (99.9999% sterilization). It is a critical aseptic transfer solution that fully complies with GMP requirements.