A refrigeration apparatus (1) comprises a compressor (2), a condenser (4, 6), an expansion mechanism (5), and an evaporator (6, 4). Refrigerant contains at least 60 wt% of R32, and refrigerator oil for lubricating the compressor (2) are used, the refrigerator oil containing polyvinyl ether oil or polyol ester oil as base oil. An acid scavenger added in an amount of 1.0 wt% to 5.0 wt% is blended with the refrigerator oil. The acid scavenger added in an amount of 2.0 to 5.0 wt% may be blended with the refrigerator oil.