FDA Registered!! Protective Korean KF94 Face Mask 20PCS/Pack For Adults. ALSO REGISTERED BY SOUTH KOREAN MINISTRY OF FOOD AND DRUG SAFETY! 4 Layer construction (non-woven fabric fusing fabric melt blown meltblown lint free non woven fabric). Protect against dust, smoke and microbes. Not suitable for harmful gasses. Adjustable nose clip, convenient to use. Light weight design, soft and comfortable to wear and breathable. Moisture-proof, non-toxic, non-irritating, 94% filtration at least. Comfortable nose foam, ultrasonically welded earbands. Material：Non-woven Fabric
