... internal,external house, public places. Nano Self-Cleaning and Anti-Bacteria CoatingIt use for plastic, metal,wall tiles surfaces, internal, ... smell, degrading the besmirch, killing the bacteria, preventing the mildew and skin hypersusceptibility, anti-ultraviolet, radiation protection.(Fluorescent,Photocatalyst).Nano- ... tiles,board and etc(Photocatalyst) Nano Self-Cleaning and Anti-Bacteria Coating