Dust Filtration >> Bags  >>Air reverse filter bag

Air reverse filter bag is similar as sharker bag. The dust air enters from inside of the bag. The dust cake assembled on the interior of the filter bags, clean air flow from inside to exterior. In order to prevent the bags from collapse by air flow, some anti-collapse metal rings stitched on the tube. Normally needle felt @400-450g/m2 or woven fabric is suitable to air reverse filter bags.