YAJU The eye mask is detachable Anti-fog lens, high-definition and transparent, can effectively block droplets. The lens has a protective film and just tear it off when using it YAJU Name: Cycling mask and eye protection YAJU Fabric: Mesh breathable fabric + anti-fog lens YAJU Weight: 46g YAJU Product color: blue YAJU Function: anti-sandstorm, face protection, dust-proof and odor-proof. YAJU Cleaning method: The entire mask can be washed with water, do not rub it, and it can be used again after natural drying.How to replace the filter elementRotate the air valve in the OPEN direction, turn it to the end and pull it out with a little force.After replacing the activated carbon liner, turn the air valve in the CLOSE direction until it stops. YAJU Size: Free size, suitable for most people, soft material, comfortable to wear, designed according to the shape of the face, covering the part below the bridge of the nose, the bridge of the nose is fixed with a nose clip to prevent slipping. There are vents on the mouth, and the back of the neck is fixed by Velcro .