The air shower serves as the primary purification barrier for personnel entering the clean zone of a cleanroom facility; it is a mandatory piece of equipment under ISO 14644, GB 50073, and GMP standards, typically installed in the buffer zone between non-clean and clean areas. Personnel represent the most significant source of dynamic contamination in cleanrooms; even when wearing cleanroom garments, they inevitably carry skin flakes, hair, fibers, and particulates. The air shower is the core equipment designed to mitigate this contamination risk.

An air shower is an essential purification and buffer unit for clean areas such as cleanrooms, laboratories, and sterile manufacturing facilities. Its primary function is to use high-speed, clean airflow to remove contaminants—such as dust, hair, and particles—adhered to personnel, clothing, and carried items, thereby preventing external pollutants from entering the clean zone; it serves as the first critical line of defense in maintaining the cleanliness of the facility. The equipment operates according to standardized procedures, and proper operation maximizes the effectiveness of dust removal and purification.