Lens Cleaning Tissues provide anti-fog protection for harsh working environments. Created for extreme temperature conditions - hot or cold， tissues clean both glass and plastic lenses， combining effective cleaning and extreme anti-fog protection. Ideal for use on safety glasses， face shields， goggles， and prescription glasses. The applicator cloth contains silicone anti-fog lens cleaning solution and is suitable for all glass or plastic lenses. Using the FogShield XP Pre-Moistened tissues is a two-step process with two different cloths. First， use the white， wet applicator cloth (8-1/4" x 4") to remove any abrasive material from the lenses or wipe the entire surface clean. The applicator cloth contains isopropyl alcohol and silicone， and is not for use on contact lenses. Use the dry， blue buffing cloth (5-1/2" x 4") next to dry and buff the entire surface.