CFORWARD Dustproof Mask Activated Carbon Filtration Exhaust Gas Anti Pollen Allergy PM2.5 Face Mask for Running Cycling and Other Outdoor Activities SUITABLE FOR MOST PEOPLE - The perfect combination of ergonomics, We are improved this mask,the bigger size can be adjusted to meet the most head type.According to the person face design, keep out the bridge of the nose the following part, have aluminum sheet fixed, to prevent the slide. WONDERFUL DESIGN - Unique ventilation design, a plurality of holes, excellent permeability, Exhale,the valve is opened without resistance,double air breathing valve, air resistance is smaller,smooth breathing. PREMIUM MATERIAL - Diving Fabrics, lightweight material, soft texture, quick drying, breathable and comfortable to wear. POWERFUL FUNCTION - Our life environment full of harmful substances, such as dust, chemicals, fumes and microbial granules, this type filters can isolate the large amount of dust, fighting the haze of sand dust weather, prevent the occurrence of respiratory diseases. 1 YEAR WARRANTY - With 1-Year Manufacturer's Warranty and 30 days no-questions-asked return policy. Value for money guaranteed, Choose Otium risk free today.Click the Orange Button to Buy Now!