The cargo air shower is an essential passage for personnel or goods entering a cleanroom, and it can reduce contamination problems caused by personnel or goods entering and exiting the cleanroom. It is a highly versatile local purification device installed between cleanrooms and non-cleanrooms. When personnel or goods need to enter a clean area, they must pass through the cargo air shower for air showering. The clean air blown out can remove dust carried by personnel or goods, effectively blocking and reducing the entry of dust sources into the clean area. At the same time, its front and rear doors are interlocking electronic door locks, which also function as an airlock to control the entry of contaminated outside air into the clean area. This equipment is widely used in air purification settings such as biological laboratories, pharmaceutical factories, hospitals, food processing workshops, electronics factories, and coating facilities.