Foldable 5 layer one size fits all KN95 face mask. Filters 95% of all airborne particles. Passes GB2626-2006 or GB2626-2019 testing for 95% filtration. Made with two layers of non-woven fabric, two filtration layers of meltblown cloth, and one layer of non-glue cotton. Black KN95 has an MOQ of 1000 pieces.