Features: Material:cotton + nylon + PP anti-sticking cloth. Features: Pure cotton, face protection, light and breathable, skin-friendly, adjustable elastic band, insert 5 layers of PM2.5 filter; Uses: anti-odor, anti-dust, anti-gas, anti-bacterial, anti-PM2.5. Descripition: 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 Package included: 1pcs Anti dust mask+PM2.5 Mask Filter Notes: 1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors. 2. Due to the screen difference, the color may be a little different from what you expect, please allow it. Please be kindly noted，the listed product is produced and distributed abroad and subject to the laws of its country of origin.