Anion is very important and essential for mankind’s health since it has an outstanding natural ability to neutralize dust, kill bacteria and viruses. By breathing air filled with full of anions, all living things including mankind can lead ?healthy and long lives. It has been scientifically proven that bacteria and viruses cannot possibly exist in the abundance concentration of Anion environment.
About 40-50 anions per cm3 of air can be found in urban cities, 100-200 in the urban sky, 700-1000 in the sky of farm fields and more than 5000 in the mountainous area. If there're too many positive ions or few anions in the air, it may cause fatigue, dizziness, migraine, depression and tachypnea. Above symptoms may disappear if one inhales the air that is filled with min. 1200 anions per cm3. If it reaches 1500, it can alleviate one’s moods, improves brain concentration and work efficiency.

Therefore, anion is a very essential component for excellent health and longevity. According to the regulations of World Health Organization, the content of anion in fresh air shall not be less than 1000 per cm3. Most people who live in mountainous area are healthier and often live to a ripe old age and do not easily suffer from inflammation symptoms as there are plenty of anions in the air.