A kitchen range hood filter can be cleaned by removing the filter and washing it either in a sink or in a dishwasher. Some kitchen range hood filter are not compatible with dishwashers, and it is recommended to check the user manual first.
To clean a kitchen range hood filter in the sink, the following items are required: boiling water, degreasing dish soap, baking soda, a non-abrasive scrub brush and some paper towels. Begin by removing the filter from the hood. Most filters simply slide out from the hood or can be removed via a catch. Fill the sink with boiling water straight from the kettle. Add a large squirt of degreasing dish soap and a quarter of a cup of baking soda to the water. Use the non-abrasive scrub brush to stir the water until it is foamy.
Once the water is foamy, submerge the filter so that it is completely covered. Leave to soak for around 10 minutes, and then use the non-abrasive brush to scrub the remaining grease and dirt. Add more dish soap if required. Once the filter looks clean, rinse under hot water and comprehensively dry it with paper towels or an old dish cloth. Replace the filter and repeat as required.