The dust mask model is a type of respiratory protective equipment. Compared with ordinary masks, it is designed to fit the face more closely and can filter particles in the air very effectively.
Dust masks can effectively filter more than 95% of non-oil suspended particles in the air, but their virus protection function is not very good. If worn correctly, the filtering ability of the mask is very high and should be optimized. It is different from ordinary masks and medical masks, but it needs to be worn once, and it is not recommended to wear it continuously for more than 6 hours.