... , 1.6x 1.face mask(1ply,2ply,3ply,4ply) 2.BFE>99% 3.Weight:20+25+28gsm 4.Color:Blue,Green,White 5 ... .Have CE;Nelson CertificateNon Woven Face Mask is made by non woven polypropylene ... kit ,medical cotton ,dental cotton rolls,disposable underpad,examination bed sheet ,couch bed sheet ,paper bed rolls ,surgical gown ,protective gowns,face mask .