Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robotic vacuum market. It's a sweeper/mopping hybrid that's pretty impressive. It's costly and is hindered by a cumbersome, slow learning curve application. To mop, you place an ointment sheet into the base station's clean water tank. Then it https://good-robot-vacuum66726.blogolenta.com/24601032/what-are-the-myths-and-facts-behind-eufy-robot-vacuum