... inexhaustible solar energy or other lights.Bactericidal function: anti-virus, anti-bacterial ,anti-mildew kill all kinds of bacteria ,germs, ... : hospital waiting room,wards, maternity care centers,kindergartens, pet hospitals, nursing homes, hotels,toliet, smoking room, KTV ... cool ,dry places.Shelf life: 2 years Anti bacterial&Anti virus&Anti mildew coating Nano Tio2 Photocatalyst Liquid Coating