The fabric and design of dust removal bags should strive for filtration, easy dust removal, and long-lasting effects. The selection of dust removal bags is crucial as it directly affects the dust removal efficiency of the dust collector. The selection of dust removal bags should be based on the following factors: gas temperature, humidity and chemical properties, particle size, dust concentration, filtration wind speed, dust cleaning method, etc. In pulse and gas box pulse dust collectors, dust adheres to the outer surface of the filter bag. When the dusty gas passes through the dust collector, the dust is trapped on the outer surface of the filter bag, while the clean gas enters the inside of the filter bag through the filter material. The cage inside the filter bag is used to support the filter bag, prevent it from collapsing, and at the same time, it helps to redistribute the dust cake.