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 possible. The working principle of airlock chambers is mainly based on the air purification requirements of cleanrooms, utilizing mechanical or electronic interlocking devices to ensure that both doors cannot be opened simultaneously, thereby preventing cross-contamination between the cleanroom and non-cleanroom environments. When one door is opened, the other door automatically locks, and the opened door 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.