Dyson via eBay offers the refurbished Dyson AM11 Pure Cool Tower Air Purifier Fan for $279.99 with free shipping. (Groupon charges the same.) That's tied with our mention from last week and $219 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.

Note: A 6-month Dyson warranty applies.