... EU EN ISO 13485/2003 and CE certificate2.3-ply face mask, pp+filter paper+pp BFE≥95% high elastic circular rubber ... airport,hospital,computer room,food industries,electronic industries,paint factories.5.Size: 95*175MM6.Package:50pcs/box,40bags/carton,2000pcs/ ... airport,hospital,computer room,food industries,electronic industries,paint factories.5.Size: 95*175MM6.Package:50pcs/box,40bags/carton,2000pcs/ ...