nuisance mask,non-woven mask,dust mask 1.PP cloth,which is water resistance. 2. Portable and economical. nuisance mask,non-woven mask,dust mask Feature1.PP cloth,which is water resistance.2. Portable and economical.ApplicationSuited to mining, building, casting, grinding drugs, agriculture, gardening, forestry, livestock husbandry, subway engineering, aluminum working, electronic and electrical ...