Irobot scooba 230 floor washing robot cleans routinely so you don't have to. iRobot's newest and most compact floor washing robot brings high-performance scrubbing to tight, hard to reach spaces in bathrooms and kitchens, including around toilets and under cabinets. scooba 230 cleans tile, linoleum and sealed hardwood floors using a three-stage cleaning process that neutralizes up to 97-Percent of common household bacteria. the included virtual wall keeps scooba out of off limits areas. all you have to do is sweep. this model includes a 12 month limited warranty for the robot and a 6 month limited warranty for the included battery. when used as directed, laboratory testing results indicate removal of Escherichia coli and staphylococcus aurous bacteria after two passes of the scooba floor washing robot, individual results may vary.