To provide a refrigerator that can grasp a state of oxygen inside an oxygen-reduced chamber.SOLUTION: A refrigerator includes: an oxygen-reduced chamber 30 provided inside a cabinet 12; and an oxygen reducing device 100 for reducing internal oxygen from the oxygen-reduced chamber 30. The refrigerator displays information from which a user can specify that as the oxygen concentration decreases with the operation of the oxygen reducing device 100, the greater preservation effect is exerted for foods in the oxygen-reduced chamber 30.SELECTED DRAWING: Figure 16【課題】減酸素室内部の酸素の状態を把握できる冷蔵庫を提供する。【解決手段】キャビネット12内部に設けられた減酸素室30と、減酸素室30内部の酸素を減らす減酸素装置100と、減酸素装置100の動作によって酸素濃度が低いほど減酸素室30内部の食品に対する保存効果が大きいことを特定可能な情報で表す。【選択図】 図16