Figure 1

Brief summary of the process of swab test for RLU performance. (A) The co-author LB while swabbing on the inside part of a vertical surface (a window glass, for example), (B) Way by which the swab must be handled and used on the surface; (C) Inserting the swab in the RLU detection device; (D) an example of RLU read out; (E) and (F) Different examples of the WIWELL TiO2–Ag–NP application (a job container and an office); (G) Microbiology output on a TSA plate (37 °C, 48 h) before and (H) after the application for 12 h of the WIWELL TiO2–Ag–NP adhesive film.