Dyson via Rakuten offers its refurbished Dyson HP01 Pure Hot + Cool Desk Purifier, Heater, and Fan for $199.99. Coupon code "SAVE15" drops that to $169.99. With free shipping, that's tied with our mention from two weeks ago (and Black Friday mention) as the best price we've seen. (It's $329 less than the best deal we could find for a new unit.) It features a vacuum-sealed glass HEPA filter that removes 99.97% of allergens, 9-hour sleep timer, and magnetic remote control. Deal ends April 23.

Note: A 6-month Dyson warranty applies.