10pcs/pack black disposable face masks breathable dust mask stretchable elastic ear loops (black) fecedy material:eco-friendly non-woven fiber fabric with 3 layer, comfortable and soft<br> one size for most of men and women<br> functions: it can help you keep away smoke, debris, residue and dusts.the dust mask is breathable efficient dust mask,fine workmanship,stretchable elastic ear loops and adjustable facial adhesion easy to wear<br> applications: dust-free workshops, schools,catering services, food processing, environmental cleaning, production workshop,public occasions etc<br> pls notice high quality product from"fecedy",if you think have any quality questions,pls tell us,100% money back!