R410A is a new type of environmentally friendly refrigerant, R410A is so far internationally recognized as the most suitable refrigerant to replace R22, and has been popularized in Europe, America, Japan and other countries. R410A replaces data on global trends and prospects for use in major international markets and dynamic physical properties entering international markets. In line with the standards of the US environmental protection organizations EPA, SNAP and UL, in line with the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) A1 safety grade category (this is the highest level, harmless to human body).