The cargo shower room is a necessary passage for goods to enter and exit the clean room, and also serves as an airlock to seal the clean room. In order to reduce the large amount of dust particles caused by the entry and exit of goods, the clean airflow filtered by the high-efficiency filter is sprayed onto the surface of people and goods through the rotating nozzles on both sides of the box, effectively and quickly removing dust particles. The cleaned dust particles are then filtered by the primary and high-efficiency filters and circulated back to the air shower area. In order to achieve the best effect of air shower, the nozzle outlet of the cargo shower room is designed with a wind speed of 18-22ms or more, and the minimum wind speed when blowing onto people is 18ms. The initial air shower time set at the factory is 10 seconds.