Look Clear Anti-Fog Dive Mask Spray Look Clear Anti-Fog Spray features a specific and extremely effective formula, which provides a long lasting anti-fogging and anti-silicone action on all types of dive masks and swimming goggles. It performs well even in extremely cold waters and is non-abrasive and safe for all kinds of lenses and optics. Biodegradable and non-toxic, it is safe to use and environmentally friendly too. Instructions For Use: 1. Shake the bottle and moisten both sides of the lens with the product. 2. Wait for a few seconds then rinse. 3. Guaranteed Underwater Visibility!