Glass fiber puffing yarn filter cloth is a new type of fabric developed on the basis of continuous glass fiber open-width filter cloth. Different from continuous glass fiber filter cloth, the weft yarn consists of all or part of puffing yarn. Because of fluffy yarn, strong covering ability and good air permeability, it can improve filtration efficiency and reduce filtration resistance, and has high dust removal efficiency, which can reach over 99.5%, and the filtration speed is 0.6 ~ 0.8 m/s..