When PURETi is applied to any surface that gets UVA light, it breaks down organic matter at the molecular level. One application lasts for years, providing a constant source of cleaning even when human or mechanical means don’t touch the surface. Airborne particles are oxidized when they hit a light-activated surface. Windows, light fixtures, and window coverings can become part of the cleaning solution. In Spain, outpatient surgical centers recently reported their highest audit scores ever in PURET-treated rooms.