Narwal Robot Vacuum and Mop Narwal is a relative newcomer in the robotic vacuum market. It offers a sweeping/mopping hybrid that's quite impressive. But it's also expensive and is hampered by a clunky app with a steep learning curve. To mop, you place a detergent sheet into the base station's https://best-robot-vacuum53800.blogdosaga.com/27594764/how-adding-a-best-rated-robot-vacuum-to-your-life-s-activities-will-make-all-the-difference