To simultaneously purify and heat a whole room properly, the Dyson Pure Hot+Cool purifying heater + fan goes beyond standard tests by automatically sensing pollution, capturing ultrafine pollutants, and projecting purified and heated air using Air Multiplier technology. It is the only purifying heater designed and tested to do this. This item is a manufacturer-refurbished product. It has been inspected, cleaned, and repaired to meet manufacturer specifications and is in excellent condition. The refurbishment process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships in a generic box.