Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the market for robot vacuums. It's a sweeper/mopping hybrid that is pretty impressive. However, it's expensive and is hampered by a clunky app with a steep curve. To mop, you drop a detergent sheet into the base station's clean https://robot-vacuum-that-vacuums44512.daneblogger.com/23974880/why-best-rated-robot-vacuum-is-right-for-you