Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the robotic vacuum market. It's a sweeping/mopping hybrid that's pretty impressive. It's also costly and hampered by a cumbersome app with a steep learning curve. To mop, you drop an ointment sheet into the base station's clean water tank. https://good-robot-vacuum59271.acidblog.net/58820212/the-most-popular-eufy-robot-vacuum-experts-are-doing-3-things