SpecificationShipping list: 5pcs maskFabric:Made of polyester spandex, with the best elasticity, good light resistance, acid resistance, alkali resistance and wear resistance. Light and thin filter fabric, high density, not easy to deform, high density fabric for masks, not easy to deform, canbe used multiple timesStylish design:tight fit, streamlined edge design, can fit chin and throat. Wearing this mask will make you look cool and fashionable.Convenient:With a valve, the mask is no longer sultry and uncomfortable. It is sealed when inhaled and opened when exhaled, blocking the contaminated particles and discharging the hot air. Ice silk design, let you take it in summer is not sultry. Powerful plasticityno longer fears glasses-fog. The size and flexibility are adjustable, and the large body design fits the ears. The material is breathable, cool, and highly elastic. It is comfortable to wear and has no feeling of sensation. It protects the air frompollution while maintaining smooth breathing.Washable: wash with detergent after use, can be used repeatedlyIsolation performance: anti-fog, dust, exhaust, second-hand smoke, odor, exhaust gas, etc.