The nozzles may only be cleaned with Dust Free Wipes. The wipe may only be moved over the nozzle in one direction, otherwise fibers could come loose and clog the nozzle. If an incrustation has formed on a nozzle, this can be removed with flushing. To do this, moisten a wipe with flushing and carefully dab it onto the nozzle and leave to act briefly, then wipe it off again with a dry wipe.
The frames around the nozzles can be cleaned with Meister Proper wipes.
Under the following link you can see how the fans can be cleaned -> https://youtu.be/uJqWzxFJoMY