Acrysol Shield Cleaner is the only cleaner that should be used on Simpson Venator helmet shields and all Stilo helmet shields. It should be applied using a standard paper towel. Micro Fiber cloths should not be used. This product also works for cleaning all other Simpson shields without damaging the anti-fog, anti-scratch, or colored coatings (mirror, iridium). Will not damage shield coatings. Safe to use on most painted or plastic surfaces. Should be used with a regular paper towel and not a micro fiber cloth. No lingering odor. No film residue.