New refrigerant is really good air conditioning refrigerant, how much do you know?

When purchasing air conditioners in the peak season, the popular vocabulary of non-fluorine, frequency conversion and other air conditioners constantly poured into the eyes of consumers. When faced with the concept of fluorine-free, many friends have no substantive concept. What is a fluorine-free air conditioner? What is the environmentally friendly refrigerant refrigerant? Today, the author will give you a brief introduction, what is a refrigerant, use environmentally friendly cold