Static-free ultrathin high-breathability air filter material and protective mask prepared from same

The invention discloses a static-free ultrathin high-breathability air filter material which is formed by sequentially compounding a framework layer, a filter layer and a skin-friendly layer from outside to inside. The framework layer is a non-woven fabric with certain strength and stiffness; the filter layer is a nanoscale polytetrafluoroethylene microporous membrane; the skin-friendly layer is made of non-woven fabric with good skin-friendly performance. The air filter material not only has high filtering efficiency, but also has large air permeability, and can be made into a planar or three-dimensional protective mask independently or together with other non-woven fabrics by using a conventional mask machine. Compared with a conventional product sold in the market, the prepared protective mask has better air permeability, skin-friendly performance and comfort, is lasting in filtering effect and can be repeatedly used. 本发明公开了一种无静电超薄高透气空气滤材，其从外至内依次由骨架层、过滤层和亲肤层复合制成。所述的骨架层系具有一定强度和挺度的非织布；所述过滤层为纳米级聚四氟乙烯微孔膜；所述亲肤层