Complies with U.S. NIOSH 42CFR84 N95 certification; made from hypoallergenic materials, free of natural rubber and glass fibers, effectively preventing allergic rhinitis, coughing, and respiratory symptoms caused by pollen, dust, etc.; medical protective masks (certified by China's NMPA and U.S. FDA) are used for respiratory protection of occupational healthcare workers, guarding against certain pathogenic microbial particles (such as viruses, bacteria, mold, anthrax bacillus, tuberculosis bacillus, etc.); excellent moisture resistance, capable of filtering airborne particles, isolating droplets, blood, body fluids, secretions, etc., and preventing the spread of respiratory viral infectious diseases; high-efficiency electrostatic filter material with low breathing resistance; unique style and nose clip design for a tight facial fit; foldable for convenient use in workplaces and on the go; unique inner lining design extends service life.