Provided is a compressor including a high-pressure chamber type hermetic container in which refrigerant containing hydrofluoroolefin refrigerant of 50 mass % or more and refrigerator oil are sealed; and a compression mechanism housed in the hermetic container and having a sliding portion made of an iron-based material, in which the refrigerator oil includes at least one refrigerator oil of polyvinyl ether or polyol ester, and a kinematic viscosity of the refrigerator oil at 40 C. is 10 mm.sup.2/s or more and 40 mm.sup.2/s or less.