Bestbuy offers Dyson - Refurbished HP04 Pure Hot + Cool Smart Tower Air Purifier, Heater and Fan for $249.95 (reg. $599.99) with free shipping. 

Product Description:
Dyson engineers and research concluded that to clean an entire room properly, you need to sense pollution events automatically; capture ultrafine pollutants; and project cleaner air around the room using Air Multiplier technology. The Dyson purifying heater + fan is designed and tested to do all of this**