FOG FREE+ anti-fog lens cleaner formula is highly effective on all lenses and AR coatings. FOG FREE+ comes in a one-ounce spray bottle that keeps lenses free from fog for hours. The simple spray-on, wipe-off process is preferred over more precise applications of gels, drops, and special cloths. Great for eyeglasses, sunglasses, sport glasses, goggles, and helmets. Directions: 1. Spray on both sides of the lens. 2. Rub the solution with your fingers. 3. Wait for at least 1 minute. 4. Gently wipe with a soft paper towel or cloth. 5. Reapply when fogging beings to occur.