iRobot Scooba 380 Floor Washing Robot Preps, washes, scrubs and squeegees sealed hardwood, tile and linoleum floors Cleans beneath cabinet edges, tables, chairs and other hard-to-reach places while automatically avoiding carpets and stairs Ideal for homes with larger areas. A full charge allows the Scooba 380 to clean 850 square feet (3-4 rooms) Autonomous cleaning pattern covers each area of floor an average of 5 times Sensors allow the Scooba 380 to avoid stairs and ledges