Product: DM-KN95
Size: 3D shape free, unisex Type: ears wearingAnti Droplet transmission Anti PollutionAnti DustAnti PM2.5Standard: GB2626-2006 KN95 Filtering Rate: â¥95%
1st layer: non-woven fabric 20g2nd layer: filter sponge 20g3rd layer: Meltblown cloth 20-25g
4th layer: non-woven fabric 20g