The air shower is a highly versatile local purification equipment installed between the cleanroom and the non-clean room. When people and goods enter the clean area, they need to be blown through the air shower. The clean air blown out can remove the dust carried by people and goods, and can effectively block or reduce the dust source from entering the clean area. The front and rear doors of the air shower/cargo shower room are electronically interlocked, which can also function as an airlock to prevent unpurified air from entering the clean area.
The air filter in the air shower room is the supporting equipment for the clean workshop and the assembly clean room. For example, the cleanroom of 1000, 100, or 10 cleanliness. The air shower room has a decisive role, so understand how long the air filter in the air shower room is Need to replace is more important. Let me explain the replacement conditions and cycle of the air filter in the air shower room.
So how long does the air filter in the air shower room need to be replaced?
① The air filter used in the air shower mainly includes primary and HEPA filters. Generally, the efficiency of the primary filter is G4. According to the data analysis of the users of the air shower, the primary filter should be between 3 and 6 It needs to be maintained in about a month. If you are using a washable filter material, you can use it after cleaning. It is recommended that the number of cleanings should not be more than twice, and the filtration efficiency will be reduced by 15% after cleaning.
② The HEPA filter inside the air shower room generally uses H13 (99.99% 0.3UM). According to the management of an ordinary clean room, it usually has to be replaced in about 1 year, but the HEPA filter in the air shower room is different. , If the same conditions as above are used, the HEPA filter in the air shower room can generally be used for 1 year or longer. If you want to use it for a long time, the premise is to do the usual maintenance work, including the air shower room Clean frequently, and avoid dust accumulation.
③Of course, the above replacement time is only based on some data in the industry, and may not be applicable to other users. The simple determination method is based on the blowing effect of the air shower room. If the air shower room is reduced, it can be As one of the bases for maintenance or replacement of air filters.