The dirt is automatically sucked up by the hoover into the bag in the charging station. You don't have to do anything! Only when this bag is full do you have to replace it with a new empty bag (like with a normal hoover). Depending on the vacuum cleaner, only after 2 months. The bag is located just above the hoover behind the cover in the compartment.

Yes, ex-friends can often be quite stubborn when it comes to homework, but at least a robot hoover doesn't constantly complain, get drunk on beer or watch football :-).