1. The anti-fog surface is made of hydrophilic material; For a better anti-fog effect,please wet the inner surface of the lens with water before every wearing; Meanwhile, the use of wetting goggles before, can enhance leak water features. 2. When wearing, first place googles around the eyes in a comfortable position, wrap the strap in the back of your head and adjust smooth and get it fixed;headband should not be too tight. 3. After wearing, press goggles frame gently in order to make better absorption around the eye goggles. 4. After wearing for a long time, loose lens to avoid hypoxia and dry eyes. 5. After use, rinse it with water and dry it naturally, avoid to wipe the inner surface of the lens directly and to damage the anti-fog layer; In order to ensure the durability of anti-fog, avoid the hard object to scratch the outer surface of the lens.