Description Overview 3 ply disposable face mask Classification: Class I according to Rule 1 of Annex IX of Directive 93/42/EEC Specifications Size: 17.5 x 9.5 mm Three layers of comfortable non-woven fabric filtering layer by layer Skin contactable non-woven cloth Melt blown fabric filter with BFE ≥ 95% Outer non-woven protective layer Packaging Packing options: 10 pieces per bag, 50 pieces per bag, or 50 pieces per box