This unique clear formula means powerful, long lasting Multi-dive anti-fog protection. Sea Gold is highly concentrated and designed for quick, simple, in-field application. Sea Gold is non-toxic and alcohol-free, safe for all glass and plastic lenses and will not harm surrounding silicone or rubber support frames. Supplied in a handy 37 ml sized re-useable container. Not recommended for swimming goggles. DIRECTIONS FOR USE: Clean new mask lenses with Sea Buff™ mask pre-cleaner. This removes the silicone residue leeched from the mask skirt during manufacturing, and enables anti-fogs to work more effectively. Regular cleaning with Sea Buff eliminates dirt, algae, mould and other contaminants that interfere with anti-fog performance. STEP 1: Apply a small amount of Sea Buff to inside and outside of lens. Rub aggressively, rinse and repeat. STEP 2: Buff with a soft, dry cloth until clean, then rinse thoroughly. STEP 3: After cleaning with Sea Buff, apply anti-fog (Sea Gold™, Sea Drops™ or Sea Quick™) to inside of dry lenses. STEP 4: Rub in anti-fog with fingers. Rinse in fresh or salt water and leave to dry.