Surround Air XJ-3100A Intelli-Pro 3 Air Purifier, Gray Large coverage area up to 600 square feet Low replacement costs Extremely powerful fan with 180 cubic feet per minute and still maintains the extremely quiet operation Low energy usage, using a mere 55 watts of power on the highest setting Dimensions: 19 x 15.75 x 6.5 weighs 12 Lbs 16 germ-killing UV mini-lamps. No replacement required.