... idea accepted 4.FDA,CE,ISO13485 approved Disposable Tie-on Face Mask in FDA,CE,ISO13485 StandardSpecification:1.Material:Polypropylene fabric+ ... 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 ...