UVC germicidal lights reduce the growth of mold and other bio aerosols. The Healthy Climate ultraviolet light is effective in reducing viruses, bacteria, yeasts and mold. With the UV-2000, also known as the X4575, you can eliminate biological contaminants like mold and bacteria from your air and reduce your family's exposure to potentially harmful airborne pollutants. This unit can also protect equipment by sterilizing surfaces.