Lens Cleaning Tissues provide anti-fog protection for harsh working environments. Created for extreme temperature conditions – hot or cold, tissues clean both glass & plastic lenses, combining effective cleaning & extreme anti-fog protection. Ideal for use on safety glasses, face shields, goggles, & prescription glasses. The applicator cloth contains silicone anti-fog lens cleaning solution & 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 & silicone, & is not for use on contact lenses. Use the dry, blue buffing cloth (5-1/2" x 4") next to dry & buff the entire surface.