Two-thirds of American households now have ceiling fans. Ceiling fans create air movement that helps people feel cooler. They can save money by assisting mechanical air conditioning or even replacing it in climates with mild or dry summers. High-efficiency ENERGY STAR-rated ceiling fans use permanent magnet motors that are 3 to 5 times more efficient than standard ceiling fan motors. ENERGY STAR ceiling fans can be equipped with high-efficiency lighting, which adds to savings.