In addition to its outer shell, the appliance also has a filter that can damage the surrounding air if it gets dirty. Therefore, it should be washed as often as possible. Only if the grease settles and accumulates there, its removal will be very troublesome. Therefore, it would be wiser to wipe it every day, preferably after each cooking. This is actually the most complicated part to clean, since the largest amount of fat absorbed by the hood is concentrated in this filter. It is also recommended to clean it once a month. However, it also depends on the type of cooking you are used to. If you cook more with steam, the mess will not be as much as if you cook fried food regularly.

Can we just clean it directly in the dishwasher?

It is possible, yes, but on one condition. You should not use 3 in 1 or 5 in 1 tablets because they contain additives that attack the chrome bath present in all range hood grease filters. Therefore, if the filter is not stainless steel, it is better to avoid the dishwasher. If the filters are metal, it is advisable to put them in a basin with lukewarm water, some neutral soap and one or two caps of ammonia. Leave to soak for a few hours until the grease has softened properly. Then rub it off with a soft sponge and rinse with lukewarm water. And voilà, the filter of your cooker hood is like new!