The Vornado 633DC Energy Smart circulator gives you up to 80% energy efficiency with its powerful DC-motor that moves air up to 24 metres. Simple variable speed control gives you precise control of the signature “Vortex Action” creates whole-room circulation, keeping the entire room cool and comfortable. This Air Circulator can be placed on the floor or tabletop. Maintaining the 633DC is simple with a detachable grill that provides easy access to the blades for cleaning. Unlike typical fans, a Vornado creates whole room circulation using an airflow phenomenon called “Vortex Action”. An inlet guide cone directs air to the most efficient portion of the blades. In turn, the wide, heavily contoured blades churn the air into motion. The air then travels through a duct which sculpts the air into a column shape. As the air exits the Air Circulator, Vornado’s AirTensity Grill straightens the airflow to ensure the air travels long distances. The airflow column will spin and twirl to the opposite corner hitting the wall where it will split of and recirculate to the centre of the room.