Philips AquaTrio 9000 Series Instructions Manual page 29

1 Pull the filter case off the dust bucket.
2 Press the release button to release the lid of the filter case and remove the
foam filter.
Caution: Make sure that the filter case lid does not get wet during
cleaning.
3 Shake the foam filter over a waste bin to remove the layer of dirt on top of
the foam filter. Then rinse the foam filter under a tap.
4 Squeeze the foam filter to remove the water.
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