Bio-Shield UV-C Air Sanitizer System, Cleans Air of Bacteria, Germs, Mold and Allergens Cleans and sanitizes air by killing bacteria, viruses, Allergan, mold. Uses less electricity than a 25W light bulb. Easy DIY installation Kills contaminants that causes colds, flus, allergies, sinus infection Reduces A/C costs by removing bio-film on A/C coils making them more efficient Uses Germicidal UV-C lamps made by Phillips, coated with Teflon for protection during accidental breakage Eliminates the need for costly duct work cleaning