we are supplier of N 95 Mask which having 5 layers . Perticulate filtration eficiancy 95 %, snug facial fit, leak proof,easy breathability,non iritating,sling friendly,filter viruses, bacteria and air polution, anti smog. having 5 layers 1st Layer: Non Woven Fabric for isolation of large particals 50 gsm 2nd Layer: Melt Blown Fabric High density filter layer 25 gsm 3rd Layer: Non Woven Fabric special liquid resistent power 50 gsm 4th Layer: Melt Blown Fabric High density filter layer 25 gsm 5th Layer: Skin Friendly non woven fabric soft & comfortable 25 gsm.