birgit.epplen7 years ago000Does the robot vacuum cleaner have a valid CE seal? How often does the filter need to be changed? Thank you for your answers :-)Show in original language (German)joe.donkor7 years ago000 Helpful answerAn app informs you when the filters are to be changed. The robot has CE conformity.Show in original language (German)Commentamirs.tafreshi7 years ago000You can frequently change the filter. They also have a backup filter! You can also clean the filters manually. You should change the filters only if they are broken (from my point of view).Comment