Can I clean the filters and pre-filter of my Philips Air Purifier?

You can clean or wash the pre-filter (indicated as C in the image below).

The other filters (indicated as A and B in the image below) cannot be washed: they need to be replaced. Please check your user manual to see replacement indications specific for your model.

Pre-filter is the filter surface (indicated as D in the image below) of a layered filter. When the filter cleaning alert (Figure 1) displays on the screen, clean the filter surface with a vacuum cleaner. When the filter replacement alert (Figure 2) displays on the screen, it’s time to replace the filter. Please check your user manual to see replacement indications specific to your model.  
Note: There is no filter cleaning alert on some Philips Air Purifiers. Please follow the cleaning schedule and instructions on the user manual specific to your model.
 

The information below applies only to model AC3680.
When activating the automatic floating hair collection system of AC3680, the scraper will work and remove the pet hair/fur captured by the pre-filter. You can also clean the pre-filter (indicated as A in the below image) and the surface of the layered filter (indicated as B in the below image with a vacuum cleaner when you feel necessary.
Note: There is no filter cleaning alert on some Philips Air Purifiers. Please follow the cleaning schedule and instructions on the user manual specific to your model.