Effect of Differential Pressure - Air Filter1
The role of the pressure difference in the clean room There are various objects to be operated in the clean room, such as electronic products, medicines, health products, microorganisms, viruses, etc. During the operation, some objects (such as viruses, etc.) will produce aerosols that are harmful to humans or even biologically dangerous. Therefore, whether it is to produce products in a clean room or conduct virus research, it is necessary to protect the products from external contamination, and also to prevent the contamination generated during the operation from leaking out. In addition to the protection of a well-sealed clean room barrier, it is also necessary to use the effect of pressure difference to make the air flow in the specified direction. If the static pressure of the positive pressure clean room is greater than the static pressure of the adjacent room or the environment, this pressure difference can be used to make the airflow flow in the specified direction, which prevents the adjacent room or outdoor from contaminating the clean room. Negative pressure clean room is just the opposite. Some biologically dangerous operations are performed in the clean room, or strong sensitizing drug dust will be generated during the operation, which requires the use of this pressure difference to control pollutants. within a specific range. Therefore, through the joint action of this pressure difference and the sealed envelope structure of the clean room, a barrier protection system is formed to achieve the purpose of controlling pollution.
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