Commercial refrigerators use a lot of energy, so it makes sense to wonder if you’re doing everything you can to boost its efficiency. The best way to know is to determine whether your unit has the ENERGY STAR label. Typically, refrigerators that do are about 20 percent more efficient than those that don’t. You can also look into dehumidification filters or interior plastic curtains to help control moisture, keep cool air inside, and decrease your energy usage as a whole.