Combination refrigerator-microwaves store, chill, and cook food. The microwave features internal smoke sensors that automatically shut down the microwave if smoke is detected. Microwaves also have built-in safety features that prevent circuits from overloading. When using the microwave, power is temporarily suspended to the refrigerator and charging outlets. These combination units are ideal in areas where space is limited for multiple appliances such as assisted living facilities, dorms, or office break rooms. ENERGY STAR-certified appliances use less energy and perform as well or better than unrated appliances, and may contribute to a lower monthly energy bill.