Pass Box

A pass box is a compact, enclosed chamber used to transfer materials between areas of different cleanliness levels, such as from a general laboratory to a cleanroom, without causing contamination. It plays a crucial role in maintaining controlled environments by minimizing direct human interaction and reducing the risk of cross-contamination.

Typically constructed from high-grade stainless steel, it offers durability, corrosion resistance, and easy cleaning. The unit is equipped with two interlocked doors, ensuring that only one door can be opened at a time. This mechanism prevents the direct flow of air between areas, thereby maintaining pressure differentials and cleanliness levels.

Some models include additional features such as UV sterilization and HEPA filtration systems. These features help eliminate microorganisms and airborne particles, ensuring that materials transferred remain sterile and safe for use in sensitive environments.