On Nov. 20th, CHIGO together with the International Copper Association held a joint press conference in Beijing, announcing that CHIGO launched the world's first Direct Inverter CU+ antimicrobial residential air conditioning. Thousands of mainstream medias and journalists from China, USA, UK, Middle East, Japan and Singapore witnessed this historical time. Mr. Li Xinghao, the president of CHIGO, and Mr. Xu yongxin, the vice president of Global Technological Research and Development of International Copper Association, and Mr. Xu hong, the president of Asia Area of international Copper Association attended the press conference.



The attending experts thought that the launch of Antimicrobial Copper AC with Cu+ Mark is a revolutionary breakthrough at the aspect of health and energy-saving technology, which also demonstrated CHIGO’s leading competence at AC industry. At the same time, this product is integrated with all the leading technique of residential AC, which also delivers a message that CHIGO is going to dominate the high-end AC market.

Global First Residential Antimicrobial Copper AC with Cu+ Mark
On September 3, 2010, CHIGO with the International Copper Association signed a strategic cooperation framework agreement; two parties formally start cooperation in the field of industry-combination, energy conservation, green and healthy areas. The priority is given to this project: the application of antimicrobial copper technology at household AC. Beneficial for both sufficient technical reserves and strong R & D capability, the first global household antimicrobial copper AC with Cu+ mark launched in less than 4 mouths. CHIGO is firstly approved to obtain the using right of the contacting-surface antimicrobial material mark “CU+”by EPA around the world and becomes the world’s first household appliance enterprise to use such mark.
At press conference, the top leaders of CHIGO and International Copper Association unveiled the mistrial yashmark of global first household antimicrobial copper AC with Cu+ mark. According to the introduction of Mr. Zheng zhuyi, the vice president of CHIGO, it is an updating product of Inverter DC Three Super King, which not only inherits the intelligent characteristic of super energy saving (EER up to 8.36 break world record), super silent (19 dB), super healthy (die of natural bacteria up to 91.36%), but also is the first global household antimicrobial copper AC with Cu+ mark.
Reporters, on the scene, saw that the fin of condenser and evaporator at antimicrobial copper AC with Cu+ mark were made by copper instead of aluminum.
 “The natural antibacterial performance of copper already is approved by America Environmental Protection Bureau at 2008. Europe and America already apply this natural antibacterial technology at medical and large-scale public construction. The copper fin used on household AC is a leading application for this technology. ” Mr. Zheng Yongxin, the vice president of Global Technological Research and Development of International Copper Association said.
According to the report of U.S. Environmental Protection Agency, copper could kill 99.9% germ attaching to the surface at moderate temperature. In reference to the testing report of Environmental Health and Related Product Safety office, Chinese Center for Disease Control and Prevention, , the average inhibition rate of copper to staphylococcus aureus is 99.95%, to Bacillus coli is 100%, to candida albicans is 99.96%. After the long term research of Institute of Refrigeration and Cryogenics at Shanghai Jiao Tong University, the heat exchange performance of copper fin has much more efficiency, which could save 20% p