In the near future inside, ion of negative oxygen of air of travel scene area monitors systematic general automatically to Jiangxi area of all travel scene is outspread and patulous.

Meanwhile we contrast the inspect result of the small forest climate and air concentration of negative oxygen ions, in order to be the assistant indexes for the health assessment.

This formula applies one of the longevity conditions of Bama people: lung function improving method — a principle that the high content of negative oxide ions in the air makes people live long.