3 ply Facemask Specification: Without Glass Fibers Hypoallergenic. Very low resistance to breathing nose bar adaptable. High Filtration. Capacity Perfect Fitting. Made of Good quality environmental friendly skin-friendly non-woven material, l and anti-haze, non-toxic and non-irritating. 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.