Indoor air pollution has become an unavoidable problem of urban people, urban population every day there are about 80% -90% of the time is spent indoors, but the people living in the indoor long headache, cough, fatigue and a variety of discomfort symptoms, severe and even produce a variety of diseases, which is actually related to indoor air pollution. 


 If we say that their indoor air pollution still can afford it, then children, pregnant women can say is the biggest victims of indoor air pollution. Only children, each year about 2.5 million people due to indoor air pollution and disease, 80 percent of leukemia patients with the disease have had varying degrees of decoration in the home before, and this figure each year continue to be refreshed. 

 According to environmental scientists, the negative oxygen ion concentration in the air less than 20 per cubic centimeter, the people will feel tired interest, confused; when the number of negative oxygen ions per cubic centimeter of air from 1000 to 2000 between when the minimum number of essential, when the number of negative oxygen ions per cubic centimeter of air between 2000 and 5000, people will feel calm, calm and stability; when the number of negative oxygen ions per cubic centimeter of air 5000 50000: People will feel refreshed, comfortable and cozy, but also increase resistance to disease and bacteria and other; when the number of negative oxygen ions per cubic centimeter of air up to 100 000, will be able to calming, Zhichuan and eliminate fatigue, regulating nerve disease prevention and control effects.