To reduce an increase in a power consumption due to an indoor temperature rise by suppressing flow-out of a cold gas to the exterior at door opening/closing time of a refrigerator with a deep freezer, contrarily flow-in of a warm atmosphere to the indoor and introducing of the indoor temperature abrupt rise, and preventing a damage of a preserved food.

Inner and outer atmosphere flow-in and flow-out preventing shielding unit for the refrigerator with the deep freezer comprises an inner and outer atmosphere shielding curtain stretched therein. Thus, the flow-out of the cold gas from and the flow-in of the warm atmosphere to the refrigerator are suppressed to hold the indoor temperature constant.