Big Ass Fans Haiku

World's Quietest Fan Courtesy Big Ass Fans

With its residential Haiku model, Big Ass Fans changed every convention established by a century of ceiling-fan design. That hot, loud, electromagnet-driven AC motor is now a cool, quiet, permanently magnetized DC drive that’s 80 percent more efficient. Instead of flat blades, three airfoils slice through the air. Whoosh mode, one of 10 settings, mimics nature to increase the cooling effect: It varies wind speed by precisely 0.47 hertz, so that it feels more like a breeze on the skin. From $825