Roomba’s I7 has power-lifting suction that delivers 10X the air power compared to the 600 series vac, for improved pick-up performance. A 3-Stage cleaning system traps 99% of the dirt and pet hair you see and the allergens and dust you don't. Roomba’s I7 features a patented i Adapt 3.0 navigation that allows it to seamlessly navigate an entire level of your home. Smart Mapping teaches the robot to adapt to your living space while allowing you to decide which rooms are cleaned and when the robot cleans them. The Roomba I7 works on carpet, tile, hardwood, and laminate floors and its brushes automatically adjust to maintain optimal contact with these surfaces. Side brush cleans up areas normally missed by regular vacs. The I7 will automatically return to its dock for recharging when necessary and then resume the cleaning cycle.