The Roomba® i7+ Robot Vacuum with Clean Base™ Automatic Dirt Disposal takes convenience to a new level – automatically emptying into an enclosed, disposable bag that holds 30 robot bins, so you don’t have to think about vacuuming for weeks at a time. The premium 3-Stage Cleaning System uses Dual Multi-Surface Rubber Brushes and 10X suction* to clean different floor surfaces throughout your home.