Thank you for purchasing our changing room, which is a device to prevent polluted air from entering the clean area. The principle is to use the high-speed clean air flow to blow out the dust particles on the surface of clothes during the changing process of people entering the clean room. At the same time, as the two doors of the clean room are not opened at the same time, it can also act as an airlock to control the external polluted air into the clean area. The equipment is widely used in semiconductor manufacturing plants, biological laboratories, pharmaceutical factories, food processing industries, electronics factories and other places that need air purification. This manual introduces you to the structure and use of the changing air shower room.