Cycling Mask Bike/Dust Mask With Activated Carbon Filter & Breathing Valves 

• Filtration effective up to 95%
• Security, Breathable, Blocking droplets, Dust-proof, Stretch fabric, Close Fit to face
• Dual Breathing valves
• Filter - 5 layers of protection
• Mounting ear design
• High elastic fabric
• Multipurpose - Suitable for dust, anti-vehicle exhaust, anti-pollen allergy, PM2.5, for cycling, hiking, skiing and other outdoor activities.
• Size One Size Fits Most (see measurements in pics)
• Fabric Mesh /SBR

• The mask can be used for more than 2 years, and the filter is recommended to be replaced every 15-20 days. (Haze area, depending on the situation the filter becomes black or damaged, please replace it on time）
• The mask material is made of diving cloth, a little smell is normal. You must remove the filter first, then soak the fabric in warm water for 15 minutes with light soap, air dry, the smell will slowly disappear. The principle of filter activated carbon cannot be washed.
• We are not responsible for fitting issues after delivery. Please look at the measurements and measure your face/head before buying.
• We do not accept returns once the package is opened, since we can not resell it for health reasons.