Dyson 22159-07 AM04 Hot+Cool, Blue This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 180-day warranty|The Dyson Hot + Cool fan heater uses an efficient motor and Air Multiplier technology to project heat throughout the room|Air Multiplier technology generates high airflow and velocity, cooling effectively with an uninterrupted stream of smooth air|Target temperature can be selected to the degree, for 32 F to 99 F, and the brushless motor allows you to precisely control airflow power|Oscillation, airflow, and temperature can all be controlled using the remote control, which is curved and magnetized to store neatly on top of the machine