Vornado 5303DC Energy Smart Small Air Circulator Fan with Variable Speed ControlIMPORTANT INTERNATIONAL DISCLAIMER: This item is built to meet U.S. voltage requirements and may not function properly when used in conjunction with external devices that alter or convert voltage or frequency of electricity. Improper use or shipping the product outside the U.S. will void all warranties.The 5303DC is Vornado's debut circulator in the new Energy Smart family. Combining sleek style with a more-powerful airflow (up to 80'), the brushless DC motor uses up to 80 percent less energy, bringing modern efficiency to the home. A return to variable speed puts you in precise control of your environment via 99 unique airflow settings, and an energy-saving timer shuts off the air when it's not needed. Electronic push-button and touch controls, plus a remote control, bring added convenience. Complete with our 10-year satisfaction guarantee, these DC circulators will keep you comfortable for years (and years) to come.Vornado 633DC Energy Smart Medium Air Circulator Fan with Variable Speed ControlIMPORTANT INTERNATIONAL DISCLAIMER: This item is built to meet U.S. voltage requirements and may not function properly when used in conjunction with external devices that alter or convert voltage or frequency of electricity. Improper use or shipping the product outside the U.S. will void all warranties.The Vornado 633DC energy smart circulator is a gives you up to 80 percent energy efficiency with its powerful dc-motor that moves air up to 80 feet. Simple variable speed control gives you precise control of the signature Vortex action creates whole-room circulation, keeping the entire room cool and comfortable. Plus, the 633DC is backed with an industry-leading 10-year satisfaction .