Folding KN95 mask Product Nam : Folding KN95 Mask Main Material : Nonwoven Fabric,Meltblown Fabric, Needle-punched Cotton Nonwoven Fabric,Meltblown Fabric, Needle-punched Cotton Execution Standard: GB2626-2006 Protection Level: Production Date: See mark for production date and batch number Storage Period: 3 years(unopened) KN95/FFP2 Product size:105*160mm