The Vornado model Velocity 3 is a small compact heater measuring about 10” high by 8” wide by 7” deep. This heater has a knob with four positions: off, high, medium, and low. There is also a variable fan knob to select the air speed. When I first turned the Vornado heater on it had a plastic smell, but it went away after using it. Its safety features are tip over protection and if excessive heat is detected it will shut off. I like that the sides are cool to the touch and it turns off automatically if you must move it. The instructions are very clear as to where you should and shouldn’t use it and explains how to clean the heater when you store it. I would recommend to friends and family.