The function of air compressor is to compress air, not to cool air. A product that has no signs of leakage, abnormal sound and has sufficient pressure can be certificated as a qualified product.
Note: The compressor may contain PAG oil for lubrication during shipping, please drain and replace. It is necessary to add an appropriate amount of oil and refrigerant (about 70-80%) to the ac compressor before use. Before placing your order, please check the compatibility to make sure this is the correct compressor for your vehicle!