Fast, even room heating in winter. Strong airflow for pleasant cooling in summer. Now with Jet Focus. The only fan heater with Jet Focus technology Choose between Focus function for direct, personal heat or distribution function to heat the room quickly and evenly. Year-round use The Dyson Hot+Cool™ fan heater features Air Multiplier™ technology, which amplifies the primary air jet. This creates a large reach. In contrast to some other fan heaters, this heats the whole room quickly and evenly. In fan mode, the new Dyson Hot+Cool™ fan heater sucks in up to 28 litres of air per second and provides a pleasantly cooling airflow with a strong airflow. It can be used all year round.