Narwal Robot Vacuum and Mop Narwal is a relative newcomer to the robotic vacuum market. It's a sweeper/mopping hybrid that's pretty impressive. It's also costly and hampered by a cumbersome app with a steep learning curve. Drop a sheet of soap into the tank for clean water at the base https://robot-vacuum-that-vacuums45262.blogstival.com/50155582/why-is-it-so-useful-in-covid-19