★Made of non-woven material，Made of non-woven material, they are featuring good skin tolerance comfortable. ★ Size:17.3x 9.3cm/6.81 x 3.66″,3 layers. ★Protect the health of you and your family. ★ It is great for woodworking, house cleaning and maintenance. ★ When through congested airports bus terminal centers parks and streets of the city on the move, required in hospitals, restaurants, beauty salons, nail shops, pet stores and other environments as well as cleaning, the respirator.