China’s first local government regulation on air conditioning sanitation, the Regulation on the Sanitation of Central Air Conditioning Ventilation System of Beijing City, came into effective on April 1. Since May 1, both Qingdao City of Shangdong Province and Shantou City of Guangdong Provinve started to implement the new administrative rules on the public area sanitation, which included the administration of the cleaning and disinfection status of the central air conditioning ventilation systems. The new rules not only made specific and explicit requirements but also imposed heavier fines, up to RMB 30,000(about US$4,600), on violations. Since May 8,Sichuan Provinve started to implement ‘the administrative rules on the public area sanitation’ and ‘the measures of administration on public area sanitation.’ The central air conditioning ventilation systems that violate the relative regulations are subject to a fine up to RMB 20.000(about US$3,000).
        Midea, the leading air conditioner manufacturer in china, provides annual deep cleaning service of air conditioners to ensure the safe operation of equipments. Furthermore, in order to set the criteria for air conditioning cleaning service. Midea also took the lead to set up the standard for air conditioning cleaning service, which was publicized in December 2009 and put into practice in July 2010. In the cleaning service standard defined by Midea, the cleaning of air conditioners should not only include the safety check of the power lines, but also clean key components such as filters, evaporators and condensers. While providing door-to-door services. Midea’s service specialists will also remind customers to have professional cleaning services at least twice a year. In addition, consumers need to self-clean the filters every month. At the beginning of April, Haier, another air conditioner manufacturing giant in China, held a press conference to announce the start of the cleaning campaign of central air conditioning systems.