Hydrocarbon refrigerant is actually one of most refrigerants. The two main advantages of hydrocarbon refrigerants are energy saving and environmental protection; energy saving: air conditioners with hydrocarbon refrigerants save 15% to 35% of energy than those with R134 and R22. Environmental protection: Hydrocarbon refrigerants are natural substances, so they do not pollute the atmosphere, do not damage the ozone layer and have almost zero greenhouse effect.