Melt-blown cloth is a non-woven fabric technology that uses high-speed airflow to melt polymer materials such as polypropylene and spray them into fibers, then arranges the fiber materials horizontally, and finally heat-seals them with hot air. This technology has the advantages of small fiber fineness, uniform structure and high porosity, which makes the melt-blown cloth have excellent filtration performance and air permeability. This product has the characteristics of ultrafine fibers (fiber diameter 1 (2) ~ 5 microns), can filter dust, dust, air pollution, droplets through, has static electricity, can absorb bacteria, viruses, and improve the filtering effect of the mask.