Fight and kill mold and mildew in your HVAC system for a healthy, happy home. When properly installed near the air conditioning coil, the Aprilaire UV Germicidal Lamp kills harmful mold, mildew and bacteria growths and eliminates the odors associated with these growths. For even greater protection against harmful contaminants—pair a UV Germicidal Lamp and an Aprilaire Air Cleaner for a one-two punch against harmful airborne particles in your home. . Single Bulb Option