Groupon offers the refurbished Dyson AM11 Pure Cool Tower Air Purifier Fan in Iron/Blue for $259.99 with free shipping. That's $20 under our mention from two weeks ago and $226 under the lowest price we could find for a new one. This bladeless fan purifier features a 360° glass HEPA filter, remote control, and sleep timer. Deal ends June 1.

Note: A 6-month Dyson warranty applies.