masks disposable masks non-woven three layers protective mask

wide range of applications professional protective mask suitable for outdoor protection, flu protection, dust cover, dentist, salon, cold weather, general maintenance, etc. how to use us place the mask on your face with the bridge of your nose on the hanging on the ear, adjust the size of the mask to completely cover the nose and mouth, use both hands to adjust the bridge of the bridge of the nose on both sides of the mask. product manual random colors shipped packing: 30 pieces / pack