In short supply, it is recommended to buy in batches and give priority to the order of a single color （I don’t know when it ends, but I hope you and I are both protected） Features: Keep your face clean and neat ,protect your face aginst dust or any particles from environment. Simple design and look cool. Washable and Recycling. Comfortable breathing. One size suitable for all kinds of People. Unisex for Men and Women Condition: 100% Brand New and High Quality Material: cotton + Activated carbon Color : As the photo shown Size : As the photo shown Item NO.: Package included: Anti Dust Cover About PM2.5 Covers Filters The Product: purchased separately PM2.5 Covers Filters are not shipped, please purchase Coverwith together. 1. Material: PP anti-sticking cloth + meltblown cloth + activated carbon cloth 2. Uses: anti-odor, anti-dust, anti-gas, anti-bacterial, anti-PM2.5 Allergies,Smoke,Pollution,Ash, Pollen; 3. Scope: dust covers, self-use covers, beauty salons, pet shop covers, factory covers, food processing covers, environmental cleaning covers and other protective dust can be placed. 4. The cover filter provide comfortable protection for people.Suggest replace the fliters every week of uses for the best effect. 5. Suit for kind of PM2.5 Face covers Suit for kind of PM2.5 Face covers. Filter function: 1.The first layer: spunbond cloth, filter the dust of micron 2.The second layer: to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies 3.The third layer: activated carbon cloth, benzene and a smaller function of filtering dust microns 4.The fourth layer: filter density, smaller material 5.The fifth layer: Spunbond cloth, filter out all kinds of harmful substances; 6.Application: hospitals, out, site, tourism, colds, operating workshops, farms, haze weather, cold and warm Tips: 1, plug-in filter can not be cleaned, it is recommended 1-2 weeks to replace a; 2, the filter oil on the film or with sticky sediment stains are more, please replace the filter 3, the air is not smooth, breathing difficult or sleep, wear is not recommended 4, 2 weeks the following child lung capacity is low, is not recommended Size:Size:12.5*8cm/4.92''x3.14'' Simple PP bag packaging