What is the relationship between an air shower room and a clean room?

The air shower is an auxiliary device of the clean room and the necessary passage to enter the clean room. It is closely related to the clean room in terms of function and application, jointly ensuring the cleanliness and environmental quality of the clean room. The following is a detailed introduction:
Functional complementarity
Air shower: Its main function is to remove dust, hair, dander, and other contaminants adhering to the surface of people or objects through high-efficiency filtered strong air showers before they enter the clean room, thereby reducing the sources of pollution entering the clean room.
Cleanroom: By taking a series of air purification measures, such as high-efficiency air filtration systems, reasonable airflow organization, positive pressure control, etc., it maintains a specific cleanliness level inside the room, providing a suitable space for production, experiments, and other activities with strict requirements for environmental cleanliness.
Ensuring the clean room environment: The air shower is the "pre-defense line" of the clean room. The personnel and goods entering the clean room are pre-treated by the air shower, which can effectively reduce the risk of carrying contaminants, thereby alleviating the burden on the air purification system of the clean room, helping the clean room maintain a stable cleanliness level, and ensuring that the production or experimental environment is not disturbed by external contaminants.
Application scenario correlation: In industries such as pharmaceuticals, electronics, food, and bioengineering, which have extremely high requirements for the cleanliness of the production environment, air showers, and clean rooms are usually used in combination. For instance, in the aseptic production workshop of a pharmaceutical factory, personnel, and materials must first pass through an air shower room for purification before entering the corresponding level of clean room to carry out operations such as drug production and packaging, to prevent drug contamination and ensure the quality and safety of the drugs.