Photocatalyst can be applied to glass and leather. Photocatalysts used on glass surfaces can achieve a hydrophilic self-cleaning effect. Currently, exterior wall glass and solar photovoltaics are widely used. Used in automotive and furniture leather to remove the odor of leather additives. It's just that many domestic products are under the banner of photocatalysts, but the ingredients are not real photocatalysts. This product sprays white spots on the glass leather, which not only affects the appearance but also corrodes the furniture. Please identify the product before use.