... .Color:Blue,white,green 4.Certificate:ISO,CE,FDA,GOST PP 2-ply face mask, elastic typeColour: White, Red, Blue, ... / 21x9cmMaterial: 20x25g Non-woven FabricDisposable surgical maskSize:17.5*9.5cmMaterial:PP nonwovenWeight:20gsm PP nonwoven+25gsm Filter+20gsm PP nonwovenColor:White,Blue,GreenPacking ... the center.Th inside ply is also make of 20Ggsm PP nonwoven. Disposable non-woven PP 2-ply face mask