... increase worker confort.Space structure, so the body has more breathing space.With a alexible band ... It’s very convenient and practical.Applications of dust filter respiratorRubber, synthetic fur, metal casting, battery, ... industries, automobile manufacturing, etc. Item namedust filter respiratorItem No.CFD2002TFLayer4ply nonwoven + filter + active carbon + needle punchedColorblackPacking20pcs/box, ...