SuperHC graphene face masks is high quality and certified, For the health of you and your family, Please feel free to contact us if you have any questions. A team of customer service is ready to help. [Widely Applicable]: The face masks are suitable for office, home, salon, supermarket, cycling, grocery store and simply general public. It also can be applied in shipping malls, party and busy city streets. keep you from dust, PM 2.5, haze, smoke, automobile exhaust and etc. Because of the Graphene New-Tech, our mask soft and de odor, and longer usage duration than the general mask. [3D fitting face]: Our mouth mask has flexible plastic soft nose clip which can be adjusted to fit the nose well, so that the mask is more suitable for your face shape, and you won't inhale dust and particles.Masks for protection are using for personal protection. The Length is 6.9 inch (17.5 CM) / The width is 3.74 inch (9.5 CM), with the metal adjustable nose clip bridge, one size fits adult. [High Quality 3-Layers Protection System]--Outer layer is leak proof non-woven fabric, effective dust waterproof; Middle layer is melt blown filter layer, Hight density filter ply, stop particles; Inner layer is Graphene soft fabric layer, direct contact skin, soft and de odor, absorb the moisture from the breath, which makes it breathable and comfortable to wear. [Graphene New-Tech]--Graphene Masks have a better function of filtering dust and pollutants, Soft and non-irritatiing, Keeps mask odor free. Graphene Mask recommended usage duration is 20 hours, it is 5 times longer than the general mask. 100% Non Woven Fabric.