Dyson’s Air Multiplier technology has always been about moving air without blades. The AM09 Hot+Cool applies that principle to both heating and cooling, making it a genuinely useful year-round appliance. It’s a single machine that replaces a space heater and a floor fan.

The ceramic heating elements warm up almost instantly. In winter, the Jet Focus control sends a concentrated stream of heat directly across a room, or diffuses it to warm the space evenly. Come summer, you get the same precise control over a powerful, smooth flow of cooling air. It’s quiet for a heater, and the lack of fast-spinning blades makes it safer and easier to clean.

It is, however, a Dyson. The premium price is a significant consideration. For that cost, you get a versatile, well-engineered machine that heats a medium-sized room effectively and provides excellent focused cooling. It’s a compelling choice if you want one high-performance device to handle two distinct jobs.