High suction power that lasts for efficient cleaning. The original ECO-MAX motor assures continuous high suction power with less energy for exceptional performance. Jet Force separates the dust & air via centrifugal force. What's more, the unique hourglass-shaped dust cup compresses 33% more dust than ever at the bottom of the cup, preventing clogging of the filter to maintain high suction power. That assures no loss of suction. The powerful 310W ECO-MAX high-efficiency motor with the 3D Inducer Fan creates a dynamic, rotating air stream that produces more suction power while using less energy.