2 in 1 machine. It can do recovery, vacuum, recharge and flushing. It Uses R134a refrigerant to clean the air conditioner pipelines, condenser, and evaporator. There are two big filter driers and one big oil separator. Strong compressor being at 1000W to ensure strong cleaning effect. The stroage cylinder capacity being at 10KG, which enable the users to service a few cars in a day.