Our Resysten photocatalytic coating system based on a uniquely developed solution. The system uses light with a catalyst to achieve effective hygienic effects. The coating system, thanks to our recent researches integrates to the host medium in a molecular level therefore it cannot be removed by conventional cleaning methods and remains active continuously up to 1 year interval. This two unique property of our system result in a surface which keeps its continuous preventive effect up to 1 year, protecting the users and the environment from contamination. The coating has the expert’s report of the National Public Health Center, the substance is not biocide, not regulated by the 528/2012 EU regulation.