In a regular refrigerator, cool air is circulated from the freezer to the refrigerator and back. With our dual evaporators, refrigerator and freezer compartments are kept completely separate, so there's no flavor and odor transfer. Air from the freezer stays in the freezer and air from the refrigerator stays in the refrigerator. This prevents dry freezer air from zapping up the moisture in the refrigerator, which helps keeps food fresh. The result? Optimum freshness and longevity in both the refrigerator and freezer.