Our Sister concern company start manufacturing mask with the best quality,, waterproof and dustproof and competitive price 1:The Mask has CE certificate? Yes, it has approved CE and FDA. 2.The Mask thickness? Total of 3 layers, outside is of non- woven, middle layer: new thickened spray filter, inner side is of comfortable non-woven 3. How is the mask filter? Low filter:25g/m filter thickness:BFE99 4.Package: 50pcs/carton
