Dyson Purifier Hot+Cool (HP07)
The HP07 is the premium pick for a reason. 1,575W of heat behind a bladeless fan with no exposed element, 350 degree oscillation, sealed HEPA H13 and activated carbon filtration, and it switches to a genuine fan-cool mode in summer. It costs $760 to $900 most of the year and $490 on a good Myer sale. You are paying for the whole-year use case, not just the heater.