According to the report of the World Health Organization, the standard of fresh air is that the concentration of negative oxygen ions in the air reaches more than 20,000 per cubic centimeter. The concentration of negative oxygen ions is directly related to human health, and negative air ions are an important indicator to reflect air quality and judge the cleanliness of a place. China also regards negative oxygen ions as an important criterion for judging air quality, and vigorously builds negative oxygen ion monitoring stations all over the country to guide people's healthy life and travel.
It is reported that as early as 20 10, authoritative media reports such as Xinhua News Agency and Guangming Daily pointed out that negative oxygen ions have air optimization and high-efficiency and broad-spectrum medical care functions. At home, ecological negative ion generator chip (patent number: 20 122043390 16), nano fullerene negative ion releaser (patent number: 20 10202632997), ecological negative ion generator with negative ion system and pollutant collection system (patent number: 20/kloc-