Made of good quality environmental friendly skin-friendly non-woven material, l and anti-haze, non-toxic and non-irritating. Properties: - Without glass fibers hypoallergenic. - Very low resistance to breathing nose bar adaptable high filtration capacity perfect fitting. - Fits to the face, the adjustable magic nose bridge strip can be adjusted according to the shape of the face to avoid gaps. - Breathable and light, not tight to wear for a long time, comfortable to wear. - 3 Ply. **For further product information, please contact Chat Support**