Keep frequently touched elevator panels, kiosks, counters, and other large surfaces free of germs. This film has a copper ion finish on the rough side that stops microbes such as bacteria, mold, mildew, and fungi from growing. It's semi-clear, so it won’t obscure details of the surface below. Do not clean the film with detergents or disinfectants. Replace it after six months of use or if it becomes damaged or worn.