non-woven face mask BFE>98% Material: 20+20+25G, Non-woven Fabric Size:17.5x9.5cm Protect you from filting dust, ... : white, blue, green, pink8, available style : earloop and tie-onType: ear loop / tie type Size: 17.5*9.5cm For adult 14 ... weight: 25/25/20, 25/20/20, 20/20/18Material: non-woven, melt-blown fabric as filter layerLayer: 2ply / 3plyPackage inofrmation:800pc ...