FAQ

Inside and outside the clean room on the cleanliness of particles of the standard, as well as the level of basis?

Posted on by shengjie

Grade name dust particles maximum allowable number / cubic meter
≥ 0.5um ≥ 5um
100 3500 0
10000 350000 2000
100000 3500000 20000
300000 10500000 60000

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