A non-woven fiber fabric with three layers: non-woven exterior layer + filter paper layer + skin-friendly non-woven interior layer Breathable and comfy, it provides good dust pollution protection. These masks are painless and designed for maximum comfort. They cover the nose and mouth completely and are pleasant to wear for long periods of time, including travel. The protective layer is covered by the outer leak-proof layer, which is incredibly soft and pleasant on the skin. These latex-free paper masks are made of non-woven materials.