... PP+MB+PP 3.BFE:90%,95%,99% 4.Absulotely dustless workshop We are a Face Mask Manufacturers ... bacteria.3. Low breathing resistance with high filtration efficiency.4. With multi-layered non-poisonous, non-allergic, ... environment friendly. MaterialNon-woven, Meltblown fabric, Customized Stylewith ear loop or tie onApplicationfor medical, surgical, pharmaceutical, laboratorial, industrial sectorColorBlue ...