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 increa...