Narwal Robot Vacuum and Mop A relative newcomer to the robot vacuum space, Narwal offers a sweeping and mopping combination that's impressive. It's also costly and is hampered by a clunky app with a steep curve. To mop, you place an ointment sheet into the base station's clean water tank. https://cleaningrobotmopandvacuum31130.blogars.com/27180200/guide-to-best-rated-robot-vacuum-in-2023-guide-to-best-rated-robot-vacuum-in-2023