Package Contents: 20 Pieces Cotton 2-Layer Reusable Anti Pollution Mask With Transparent Shield.Material:100% Cotton,Color: White, Size Name: Standard.Size: 24 cm x 21 cm.Always wash your hand with soap and water or sanitise them with alcohol rub before and after using the mask.Extremely lightweight and comfortable to wear.ANTI-DUST: Wearing this face mouth mask With Transparent Shield, you could be protected from dust, small particles on-air, pollen and much more.Anti-dust,anti-odor;washable and reusable..APPLICATION: This Reusable anti-dust mask With Transparent Shield is ideal for both women and men,Used in medical, dental, laboratory, food sectors, school, household, industry and multipurpose. Face masks are 2-Layer protection, ear loop, easy breathable..