First, your robot vacuum can literally self-empty, so if the onboard dustbin is filled mid-route, it can empty itself and then continue cleaning uninterrupted. A self-emptying base saves you from the chore of emptying the dustbin so often as well, with most bases able to hold a minimum of 45 https://travialist.com/story9690745/the-ultimate-guide-to-automatic-vacuum-cleaners