Airlock chambers are auxiliary equipment for cleanrooms, primarily used for transferring small items between clean areas and between clean and non-clean areas, to minimize the number of times the cleanroom doors are opened and reduce contamination to the lowest extent. The working principle of airlock chambers is mainly based on the air purification requirements of cleanrooms, utilizing mechanical or electronic interlock devices to ensure that both doors cannot be opened simultaneously, thereby preventing cross-contamination of air between clean and non-clean areas. When one door is opened, the other door automatically locks, and the door that was opened must be closed before the other door can be opened. Additionally, airlock chambers can also blow off the surface of the items being transferred, preventing any potential dust carried by the items from entering the cleanroom.