With anti-static and have a smooth surface,easy to clean,good and steady air permeability Product Descriptionmaterial:polypropylene,polyester,polyamide, breaking force:warp1500N to 4000N ;weft1200N to 3500N elongation:20% to 40% air permeability:20 L/M2.S to 2000L/M2.S Product FeatureWith anti-static and have a smooth surface,easy to clean,good and steady air permeability. antistatic filter cloth ...