R32, the chemical name is difluoromethane, and the molecular formula is CH2F2. R32 is energy-saving, non-toxic, green, and does not harm the ozone layer. It has become one of the new stars of modern refrigerants. The ASHRAE safety level of R32 is A2, which belongs to flammable refrigerants, and puts higher requirements on production. Chigo Air Conditioning is one of the first domestic manufacturers to adopt R32 as an air-conditioning refrigerant. We purchased R32 filling machines, booster stations, alarms and other equipment that meet TUV standards from our company. At present, the entire production line has passed TUV certification.