IKEA Clean the carbon filter every 3 months; remove it from the cassette and wash in the dishwasher at max. 70°C or by hand in warm water; do not use abrasive sponges or detergents; after washing, dry the carbon filter in the oven for 2 hours at max. 70°C or at room temperature; dry in vertical position to facilitate drainage. To find out which filter to use, refer to the information for your specific extractor hood. Cookware Spare Parts and Accessories