I found this information on cleaning the filter from the manufacturer:
For theAC08xx model, there is no warning message for cleaning the pre-filter or the filter. Follow the cleaning schedule and instructions in the user manual to clean the surface of the filter with a damp cloth or hoover. When the filter replacement warning (Figure 2) is displayed on the screen, the filter must be replaced. Read the instruction manual for instructions on how to change the filter for your model.
The link to the manual would be here:
https://www.philips.de/c-p...Good to know before simply replacing the filter and throwing it away, it can be cleaned and reused according to the manual.
