Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robot vacuum market. It's a sweeper/mopping hybrid that is pretty impressive. It's costly and is hindered by a slow, clunky learning-curve app. To mop, you drop an ointment sheet into the base station's clean water tank. Then it https://vacuummopcleanerrobot80443.theblogfairy.com/27395369/a-look-at-the-myths-and-facts-behind-eufy-robot-vacuum