Dust bag production standards and characteristics of dust bag is the bag the availability of key parts, usually hang vertically in cylindrical filter bag dust collector. Filter bag fabrics and should be designed to minimize the pursuit of high performance filter and easy dust removal and durable effect. Pulse air-box pulsed dust collector, dust is attached to the outer surface of the filter bag. When the dust concentration in the gas filter, set of arrested dust in the outer surface of the filter bag, and clean air through the filter into the filter bag inside. Filter bag inside the cage to support the filter bag to prevent collapse of the filter bag, and it contributes to dust cake removal and redistribution.