Green alliance for the environment is a large national chain of indoor air purification services based in shenzhen! Green alliance environmental professions perform indoor (in-car) air quality testing, indoor (in-car) air purification (dealdehyde), sale of activated carbon, sale of air cleaners and leasing services, and also offer cooperative recruitment services. Standing board of the indoor environmental health industry association of guangdong province, a professional body for the management of indoor environmental pollution, "a capacity recommendation". With the increasing pollution of renovations, there is a general consensus to focus on renovation pollution and indoor air. Awareness of indoor environmental protection in the country rose from 29. 5 per cent in 1999 to 81. 5 per cent today, consumers are well aware of the hazards of household materials and of the pollution caused by interior decorations, consumer awareness of the right to defend the indoor environment has increased, more consumers are now required to increase environmental provisions when renovation contracts are concluded, developers are required to show environmental testing instructions when buying houses, more indoor air quality is required, most consumers have legal means to deal with existing indoor pollution, and indoor environmental detection and management have evolved into an emerging industry. As people become more aware of their consumption, people buy houses with environmental considerations and improvements are made, but so far there are no indoor air tests for the industry, and no companies that are ready to provide specialized and caring services. Market demand is the driving force behind business operations, and society calls for professional indoor air management enterprises. The management of indoor pollution holds great promise for development. As a matter of business, so far no renovation company has dared not to pollute the interior air and meet the required standards, so the size of the renovation market is the size of the testing and governance market. And our clients are basically three main groups: one, home improvement -- individuals; two, office improvement -- units; and three, car purchase -- high consumer groups, with a stronger economy, with a strong focus on their own health and living environment, which basically covers more than 85 per cent of the consumer population, making this an industry with enormous market potential。