KN95 is one of the classes specified in the Chinese standard GB2626-2006.

The domestic one is KN95, which is actually the same detection technique as N95. The latest dust mask standard has a clear classification of dust filtration efficiency level. Half mask has three filtering efficiency levels: N90 (90% protection efficiency), N95 (95% protection efficiency) and N100 (99.97% protection efficiency or above).

KN95 mask is a mask with filtering efficiency for particulate matter in our country (greater than or equal to 95%), while N95 mask is a test (standard) in the United States, but the code name is different

KN95 masks are A Chinese replacement for N95 masks, and the US Centers for Disease Control (CDC) said KN95 masks are as effective as N95 and are one of the "appropriate alternatives", BuzzFeed reported.According to 3M, the world's largest maker of masks, KN95 is "equivalent" to N95 masks and "can be expected to function very similarly".