1、1. This anti-fog spray is safe, environmentally friendly, non-toxic, non-irritating, and harmless to skin and eyes. 2、2. The product has excellent performance, stable chemical performance and lasting effect. 3、3. Suitable for all kinds of lenses and glasses to keep the image clear. 4、4. Small size and simple operation steps. 5、5. Pay attention to the use steps and conditions, and carry it with you to enjoy a clear view. Ingredients: anti-fogging agent, surfactant, cassone, purified water, flavor Content: 20ml Size: 9.5*2.5cm Anti-fogging agent* 2 Instructions for use: 1. Clean and dry the inner lens of the glasses. 2. Apply a thin layer of anti-fog liquid on the inner surface of the swimming goggles, and keep it uniform (it is not necessary to use a large amount of anti-fog liquid.). 3. After the anti-fog fluid has cooled and dried, please wet the inner surface of the mirror with clean water before swimming (because the anti-fog agent is hydrophilic). 4. After long-term use and cleaning, the anti-fogging effect in the mirror will be reduced. At this time, the anti-fogging agent can improve the anti-fogging effect. 5. Before spraying the anti-fogging agent, please check whether there are grease stains in the mirror. If so, you must clean it with a neutral detergent foam before spraying the anti-fogging agent.