What roles does the material shower play in the layout of a clean room?

The main functions of the material shower room in the layout of the clean room are as follows:
Purification of personnel and goods
Removing dust particles: The surfaces of personnel and goods entering the clean room usually carry various dust particles. The clean air filtered by the high-efficiency filter in the material shower room is blown towards the personnel and goods at a certain wind speed and Angle, blowing off and carrying away the dust particles on the surface, thereby reducing the number of pollutants entering the clean room and ensuring the cleanliness of the clean room.
Killing microorganisms: Some cargo shower rooms are also equipped with disinfection devices such as ultraviolet sterilization lamps, which can sterilize and disinfect the surfaces of personnel and goods, further reducing the risk of microbial contamination and meeting the requirements of clean room environments with high microbial control requirements, such as pharmaceutical workshops and biological laboratories.
Prevent cross-contamination
Form a buffer zone: The material shower room serves as a buffer zone in the clean room, isolating the non-clean external environment from the interior of the clean room. Before personnel and goods enter the clean room, they should first undergo purification treatment in the material shower room to prevent unpurified personnel and goods from directly entering the clean room and to avoid cross-contamination between areas of different cleanliness grades.
Control the direction of air flow: The air flow organization design inside the air shower room is reasonable. Usually, air is supplied from the top or side and returned from the bottom, forming a unidirectional or turbulent flow pattern. This makes the clean air flow in a specific direction, carrying away contaminants from the surfaces of personnel and goods and discharging them to the outside or the return air system, effectively controlling the direction of air flow and preventing the spread of contaminated air within the clean room.
Maintain the pressure balance in the cleanroom
The function of the air lock: The material air shower has the function of an air lock. When personnel or goods enter or exit, the door of the material air shower will open and close in sequence to prevent outside air from directly entering the clean room. During the process of opening and closing the door, the material shower room can maintain the stability of the indoor pressure through its own air conditioning system, reducing the impact on the overall pressure balance of the clean room.
Pressure regulation: The pressure of the material shower room can be adjusted accordingly according to the pressure requirements of the clean room. For instance, in some positive pressure clean rooms, the supply air shower can adjust the supply air volume and return air volume to make the pressure inside the supply air shower slightly higher than the external environmental pressure, thereby ensuring that external air does not seep into the clean room. In some negative pressure clean rooms, the material shower room can play a role in preventing contaminants inside the clean room from leaking to the outside.