The Dyson Hot + Cool heater quickly and evenly warms the room. In summer, it provides pleasantly cool air. The Air Multiplier technology ensures a strong, even airflow. Choose between the Focus function for direct, personal warmth or the Diffuse function to heat the room quickly and evenly. Dust is not burned, as the ceramic elements never exceed 200 °C. The air ring can be easily tilted to optimally direct the airflow. There is no grille or fan blades that need cumbersome cleaning, and no fast-spinning fan blades or visible heating elements. The device automatically shuts off if it tips over.