Medical Protective Mask The medical protective mask is composed of surface layer, filter layer, inner layer, nose clip and elastic cord, etc. Specifications: Stereoscopic 11.5cm Ã?? 15cm Structural composition: The medical protective mask is composed of surface layer, filter layer, inner layer, nose clip and elastic cord, etc. The materials of the surface layer and the inner layer are Spunbond non-woven fabrics, and the materials of the filter layer are meltblown non-woven fabrics and the material of the elastic cord is made of the braided polyester thread and the nose clip is made of the bendable and shapeable metal. Application: It is applicable for filtering particles in the air and blocking droplets, blood, body fluids and secretions in the medical situation. Package specification: 1 pieces / bag; 20 bags / box; 36 boxes / box