Three-layer Mask. It is composed of outer non-woven fabric, middle melt blown fabric and inner non-woven fabric material, plastic nose clip and mask belt. Wear our anti allergy dust mask at work or when going out to maintain health and safety. Helps you breathe more easily by protecting your respiratory tract from pollutants and allergens, and keep it sterile as much as possible. Comfortable elastic ear hook, especially soft ear hook to eliminate the pressure of the ear and give you a more comfortable wearing experience. Box of 50 pcs (packaging may not be exactly as shown).