Whether the negative ions generated by Chigo air cooler are effective or not depends on whether the negative ions generated are equivalent to the ecological small particle negative ions in nature, because according to the book Environmental Health and Negative Oxygen Ions written by Professor Lin Jinming, a doctor from Tsinghua University, air negative ions can be divided into large, medium and small ions according to their mobility, and only small ions or small ion groups can enter the body. Small negative oxygen ions or small negative oxygen ion groups have good biological activity. Small ions are small particle negative ions, which are equivalent to air negative ions in nature. Some data call them ecological negative ions, which have the characteristics of long migration distance and high activity. Medical research shows that it is small particle negative ions that have medical and health care effects on human body. Because only negative ions with small particle size can easily penetrate the blood-brain barrier of human body and exert their biological effects. Moreover, only ecological negative ions can precipitate harmful substances such as pm2.5 in the air.

At present, mankind has made a major breakthrough in the technology of producing ecological negative ions. Using the world-leading technology of ecological negative ion generation chip and nano-fullerene negative ion releaser, we can generate ecological small-particle negative ions equivalent to nature. Through the technology of ecological negative ion generation chip, small particles of negative ions can be generated, which can cover 4-5 meters outside without a fan, forming a negative ion forest bath environment and turning urban families into natural ecological environment. However, the small particle size negative ions released by nano fullerene negative ion releaser technology have high purity and do not contain ozone, positive ions and other derivatives. The most important thing to choose an anion meter is to choose one that is useful to the body.