Benefits and technological challenges in the implementation of TiO₂-based ultraviolet photocatalytic oxidation (UVPCO) air cleaners

Indoor air cleaners based on TiO₂ photocatalytic oxidation of organic pollutants are a promising technology to improve or maintain indoor air quality while reducing ventilation energy costs. We evaluated the performance of a pilot scale UVPCO air cleaner under realistic conditions in single pass and recirculation modes.