Accelerate the pace of modern life and work life, has greatly improved the quality of housing, luxurious beautiful while also sacrificing our own indoor living environment, indoor air pollution has become a cause of many diseases, is harmful to human health "invisible killer." These hazards devaluation respiratory infections, viral range up to more than 200 kinds, including influenza virus, measles virus, corona virus, rubella virus. In recent years, at home and abroad have done a lot of indoor environmental pollution studies have detected hundreds of species of toxic and hazardous substances, physics class are: electromagnetic waves, noise, radiation, etc.; biological categories are: viruses, bacteria, fungi, parasites , pollen and other; chemical classes are: sulfur dioxide, formaldehyde. These harmful substances can be different degrees to endanger human health. Home improvement materials, toxic substances is an important source of indoor air pollution. Interior materials once the national authorities have conducted sampling results indicate that the material has a gas pollution accounted for 68% of the more than 300 kinds of toxic volatile substances enters the family, that will lead to various diseases. Human life, about 70% -80% of the time to be spent indoors, 12 cubic meters per capita daily inhaled air, while urban residents every day for about 70% -90% of the time spent in various indoor environments. Imagine, indoor air testing on how important human health. A research shows that the US Environmental Protection Agency, indoor air pollution levels are generally 2-5 times more severe than outdoor, in special cases up to 100 times. US National Academy of Sciences estimated that the US health care costs each year due to indoor air pollution caused about 15 billion to 100 billion US dollars. Indoor air pollution has been attributed to one of five categories of environmental factors endangering public health. Nine Guangzhou Environmental Protection Technology Co., Ltd. specializes in indoor environmental services purification, disinfection Chinese heritage career 20 years of industry experience, the development of Chinese air elimination governance package technology, we will be in accordance with the specific circumstances of your home interior design rational scientific governance programs, by system science construction, clear and pollutant emission control, ensure long-term indoor air quality standards! For you to create a healthy and safe indoor environment! 

palabras clave: Indoor air purification , , indoor air pollution, respiratory diseases,