The high quality Frigidaire Charcoal Filter (5304513470 ) removes cooking odors from air that circulates through the microwave vent. The Charcoal Filter is approximately 10.25 inches by 3 inches and cannot be cleaned and must be replaced. Please be aware that it is recommended to use saftey equipment and to disconnect the appliance from all utilities prior to any service or repair. Please refer to your owners manual to confirm part numbers and for instructions as some repairs require a trained service professional to complete.