... deliver high filtration fineness,anti-hygroscopic.AL:Aluminum coated series filter media is on normal polyester non-woven ... used in the dust filtration fields,such as: Steel plate pre-processing, Shot blasting, Vacuum pumping sander.Powder ... Battery industry, agglomerative&fibrous dust filtration.Anti-static situation, Welding smoke, Painting booth, thermal spraying, surface processing, coating ...