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5 Ply KN95 respirators 30 pcs/ box, 720pcs/ carton Materials: 2 ply melt-blown fabric, 3 ply non-woven fabric Executive standard: GB/T 2626-2006 Cacl 95% 0.3um 95% Our KN95 masks have been exporting to many countries including Itany, Spain, USA.