The Dyson pure hot cool link purifier heater has triple functionality. It purifies all year round, quickly heats the whole room in winter and keeps you cool as a fan in summer. As a purifier, it removes 99.97percent of allergens as small as 0.3 microns from your home. Its 360˚, vacuum-sealed glass HEPA filter also helps capture odors and harmful toxins. It purifies intelligently - automatically monitoring and reacting. It then reports to the Dyson link app so you can remotely control your environment. And whether heating or cooling, jet focus control lets you select personal mode for a powerful stream of focused air, or diffused mode for wide projection. The machine also features a sleep timer, night-time auto mode and an easy-to-clean aperture.