Applicable products: resin lens, coated mirror cloth, sports eyeglass lens, swimming lens, organic glass, inorganic glass, optical glass, bathroom, helmet, automobile rearview mirror and other transparent glass plastics. Anti-fog ingredients: organic polymer and activated titanium dioxide (made of green and environmentally friendly materials, harmless to human body and glass. Resin is not harmful) Anti-fog principle: the fiber in the lens cloth contains special molecules to prevent condensation on the lens and no longer be troubled by fog Instruction for use: 1. Clean the lens with frame glasses cleaning solution 2. Dry the lens with ordinary microfiber mirror cloth 3. Polish the lens with anti-fog lens cloth, 4. Please seal and store the anti-fog lens cloth after use. can use up to 200times