The Dyson Hot + Cool fan heater provides the fastest whole room heating in winter, and smooth cool air in summer. Many conventional fan heaters can’t heat a whole room quickly because they use spinning blades powered by inefficient motors to distribute the air. The Dyson Hot + Cool fan heater does have blades. Instead it uses Air Multiplier technology to amplify surrounding air by 6 times and project heat further. The machine oscillates smoothly to distribute heat across the whole room. In the summer the Dyson Hot + Cool fan heater is a powerful cooling fan. High velocity airflow cools you with an uninterrupted stream of smooth air. Airflow is accelerated through an annular aperture. It passes over an 8-degree airfoil-shaped ramp, which channels its direction. When being used as a fan heater, ceramic plates heat the air. Air behind the Dyson Air Multiplier heater fan is drawn into the airflow, through a process known as inducement.