The Premium Series is the first Vornado air circulator to offer a 5 speed control to adjust to your precise comfort setting. The Premium 700 Series circulators are different from ordinary household fans in that they use Vornado's signature Vortex Technology to move air up to 100 feet, while providing complete circulation of all the air in the room! These air circulators are our most powerful and built for use in large rooms such as a family or recreation room, living room, or master bedroom. Available in a two-tone camel tan color to match any decor. Made to last with with a 10-year limited warranty. And the scratch-resistant rubber feet on the 745C and 795C will ensure quiet operation and protect wood floors. Assembled in the USA. Unlike an ordinary house fan, a Vornado air circulator doesn't just blow air. Instead, it literally bends and twists air to produce true whole-room air circulation using Vortex Action, exclusive to Vornado. So rather than drafts and dead spots you get an even temperature and circulation through out the room. Vornado air circulators save energy year-round by working with heating and cooling systems. In the Summer months, place near a window or air conditioning vent to circulate the cool air. This enables you to raise your thermostat up to 5 degrees and maintain the same comfort level. In the Winter take advantage of heat already in the room, direct the airflow straight up to circulate warm air that gravitates to the ceiling back to floor level.