Bestbuy offers Shark - 3-in-1 Air Purifier, Heater & Fan with NanoSeal HEPA, Cleansense IQ, Odor Lock, for 500 Sq. Ft - Grey for $149.99 (orig. $399.99) free shipping.

Product Description:
The Shark Air Purifier 3-in-1 uses Pure Air MicroForce to deliver fast,powerful, and quiet purification with added purified heat and purifiedfan modes. Clean Sense IQ senses air quality & auto-adjusts toimprove and report results in real time. A HEPA filter captures 99.98%of airborne particles like allergens*, dust, and dander (based onIEST-RP-CC007.3, 0.1-0.2 microns). Cleans up to 500 square feet.*“Allergens” refers to non-living matter.