The dust holding capacity of the dust filter sleeve, also known as the dust load, refers to the amount of dust accumulated on the filter material per unit area when the given resistance value is reached. The dust holding capacity of the dust collection bag affects the resistance of the filter material and the length of the cleaning cycle. In order to avoid the frequent cleaning of dust removal equipment and prolong the life of the filter bag, it is generally required that the dust holding capacity of the dust removal bag should be larger. The dust holding capacity of the dust filter bag is related to the porosity and air permeability of the filter material. The dust holding capacity of the felt filter material is larger than that of the fabric filter material. Dust collector bag filter efficiency. On the one hand, the filtration efficiency of the filter material is related to the structure of the filter material, and on the other hand, it also depends on the dust layer formed on the filter material. From the perspective of the filter material structure, the filtering effect of short fibers is higher than that of long fibers. Felt media is higher than fabric media. From the point of view of the formation of the dust layer, for the thin filter material, after cleaning, the dust layer is destroyed and the efficiency is greatly reduced, while for the thick filter material, a part of the dust can be retained in the filter material after cleaning, so as to avoid excessive cleaning. Generally speaking, the highest efficiency can be achieved when the filter material does not rupture. Therefore, as long as the design parameters are properly selected, the dust removal effect of the bag filter should be no problem.