... 4.FDA,CE,ISO13485 Standard Nonwoven Disposable Face Mask in FDA,CE,ISO Standard Specifications:1.Material:Polypropylene ES fabric+Polypropylene ... to skin.4.Permits air passage and breathable.5.In clinical offices,housework,gardening and maitenance for filtering dust, ... pollen,and bacteria.6.In laboratories and factories for blocking liquid mists,harmful airborne ...