Anion can purify the chemical smell
Anion can purify PM2.5 particles etc., to remove the chemical smell.
Normally, each small particles with a positive charge. So, the effect of negative ions in addition to the smoke is immediate. The taste is different Main ingredients are organic macromolecular material. Negative ions in the process of degradation of organic matter is relatively slow, The degradation of macromolecular substances naturally more slowly. After degradation, basically all is converted into carbon dioxide and water
In addition to smoke, but the process is very long.