Ultraviolet (UV) Light Fact Sheet

Ultraviolet (UV) light utilizes radiation disrupting cellular DNA to kill microbes but is not utilized for removal of chemical contaminants. This treatment tool is generally used as a final step in reverse osmosis (RO) systems to improve the efficiency of microbe removal originating from the source water or that may grow in the POU system over time. All units require some level of routine maintenance, which may include cleaning and sanitizing and filter or light changes. In addition, some units require professional installation with associated labor fees.