Frigidaire 5304409641 Charcoal Filter THIS FRIGIDAIRE 5304409641 CHARCOAL FILTER WILL FILTER THE AIR FLOW INTO AND OUT OF THE MICROWAVE. A DIRTY INTAKE FILTER WILL CAUSE YOUR MICROWAVE TO BE LESS EFFICIENT. A DIRTY EXHAUST FILTER WILL NOT ONLY CAUSE POOR EFFICIENCY, BUT MAY ALSO ALTER THE TASTE OR SMELL OF YOUR FOOD. Works with the following models: Frigidaire CFMV145BC1, Frigidaire CFMV145KB1 Frigidaire CFMV145KB2, Frigidaire CFMV145KS1, Frigidaire CFMV145KS2, Frigidaire CGLMV168CB1