PM2.5 Repeated Use Dust-proof Filtration Breathable Mouth Mask Unisex Face Mask Feature: Premium Material: This new mouth mask adopts high quality cotton, making it soft and comfortable to your face, very effortless breathable to wear,and it won't induce discomfort. Anti-Dust: Wearing this face mouth mask, you could be protected from dust, small particles on air, pollen and much more.Anti-dust,anti-odor Wide Application: This anti-dust mask is ideal for both women and men, suitable for cycling, camping, running,travel,climbing and daily use. Protect you from fog,haze,vehicle exhaust,passive smoking,etc. Great gift: This can be a good choice as gift for your family, friends, lovers for birthdays Package Content: 10/20/30/50 x mask