Air shower is a a necessary purification equipment, installedbetween clean room and non-clean room. When people needto enter the clean area, it is necessary to pass through theair shower, and the clean air blown out can remove the dustcarried by people, effectively preventing or reducing the entryof dust sources into the clean area. The front and back doorsof the air shower are electric interlocked, which can effectivelyprevent unpurified air from entering the clean area.