How often should I clean the grease filters on my NEFF D55ML66N1 extractor hood?

[WyattLynn]

To keep your NEFF D55ML66N1 extractor hood working at its best and to ensure kitchen safety, clean the grease filters regularly. The user manual advises cleaning the filters to prevent a build-up of flammable grease. For optimum performance, clean the grease filters as needed, either by hand or in a dishwasher, always following the cleaning instructions provided in your appliance manual to avoid damaging the appliance.