Resysten is a photocatalytic coating system based on a uniquely developed chemical solution. The system uses light as a catalyst to achieve titanium-dioxides’ hygienic effects. The coating system - thanks to our recent researches - integrates into the surface on a molecular level therefore it cannot be removed by conventional cleaning methods and remains active continuously for up to 1 year. These unique properties of our system result in a surface, which keeps its long-term continuous effect, protecting the users and the environment from contaminations.