The cleaning station of a robot vacuum decides how independent the robot is. That's because the robot gets itself ready for the next clean in the cleaning station. The more functions this base station has, the more independent the robot is. Some robot vacuums have an automatic emptying station. Here, the robot empties its dust cup when it's full. Other cleaning stations also fill the water tank, for example. The most extensive stations also wash and dry the mop of your robot vacuum. For the best result, choose a station that uses hot water and hot air.