A pass box is a device used in cleanroom environments to transfer items between two areas while maintaining the cleanliness and integrity of both spaces. Pass boxes typically consist of two chambers separated by a door or a sliding mechanism. The chambers are equipped with HEPA or ULPA filters to en

I. Introduction to Structure and Function The Pass box is a special device used to transfer items between clean rooms and non-clean rooms, or different cleanliness levels within clean rooms, in order to reduce the number of times the clean room is opened and minimize contamination. Its structure usu

1. Introduction to Pass Box ConceptThe pass box, as an auxiliary device in clean rooms, is mainly used for the transfer of small items between clean and non-clean areas to reduce the number of times the clean room door is opened and minimize contamination in the clean area. Pass boxes are widely use

Pass through box standard operating procedure1. Purpose: To standardize the operation of the pass box and ensure its normal use.2. Scope: Applicable to the use of clean room pass box s. sop file3. Responsibilities: Operators, workshop directors, and engineering equipment departments are responsible