Pass boxes are essential equipment for any facility that requires controlled access to a cleanroom or containment area. These units provide a safe and convenient way of transferring materials in and out of sensitive environments, without compromising the integrity of the controlled atmosphere. Pass boxes come in a range of sizes and configurations, to suit various applications and operational requirements. In this article, we will explore the different types of pass boxes, and their features and benefits.

Cleanroom pass boxes are designed to provide a highly controlled environment for transferring materials between adjacent cleanrooms, or between a cleanroom and a non-controlled area. These units typically feature HEPA or ULPA filters to prevent contamination, and are constructed of materials that are easy to clean and disinfect. The pass box doors are interlocked to prevent both doors from being open at the same time, which reduces the risk of contamination from outside the cleanroom. The pass boxes may also be equipped with a UV-C light to further sterilize the materials being transferred.