Is it 100% necessary for a clean room to be equipped with an air shower?

First of all, let me answer you, it is not 100%.

According to the “Cleanroom Design Specifications”, the setting of air shower room is only a recommended clause rather than a mandatory clause. The current situation of domestic cleanrooms is that about 80% are equipped with air blowing rooms, which means that there are still 20% that do not have them. If the cleanroom area is small, the cleanliness level is not high, or the external environment is good, it is not necessary to set up an air shower room. However, the air shower room can remove coarse dust on the surface of people and objects, avoid cross-contamination, and greatly protect the service life of the cleanroom, so it is very necessary to set up an air shower room.