Polypropylene (PP) is selected and melt-blown and electret-treated materials with different bulk densities and fiber diameters are produced for the manufacture of masks that meet different industry standards. Melt-blown mask filter materials have the advantages of high filtration efficiency, low resistance, and a long efficiency decline cycle. The fiber structure with different crimping degrees and densities can effectively filter different forms of particles, impurities, viruses, bacteria, etc. in the air. The materials are widely used in the fields of medical and health care, labor protection, occupational health, etc.