This Microwave Charcoal Filter removes cooking odors from air that circulates through the microwave vent, potentially causing build-up and damage. If your current filter can no longer be cleaned and is not functioning properly, replacing it may alleviate the issue. This charcoal filter is an accessory that can be used across several brands; check to see if your model number is compatible. Size: approx. 5″ W x 12″ L. Replacing this part will require no disassembly of the appliance or repair experience.