... dust, pollens, mold spores, dust mites, and other allergens4.ISO, RoHS, SGS approvalHepa air filter Application:1)air HFPA purifier, ... air cleaner, vacuum cleaner,etc.2)FFU, electronics, semiconductor, hospital and ... melt-blown+glass fiber.We are ISO factory for manufacturing filter materials and non-woven fabric since 2004.Welcome ...