Bissell 496 sq.ft. HEPA Filter Air Purifier
This air purifier filters rooms 102 sq ft with 4.8 air changes/hour, 165 sq ft with three air changes/hour, 248 sq ft with two air changes per hour, and 496 sq ft with one air change per hour. It has three fan speeds and unique night light. Price drops from $123.59 to just $53.77 w/ free shipping.