Heaters rated Fair or Poor can be hot enough to cause a burn when operating at their hottest setting. The Dyson Pure Hot+Cool (HP04) is part of the Space Heaters test program at Consumer Reports.

Here's the Dyson HP09 Pure Hot + Cool Formaldehyde review in a big, windy rush: it's Dyson's best fan, best heater and best air purifier ever ... on gorgeous tech, home and active products ...