Negative air ionization therapy
Use of air ionisers as an experimental non-pharmaceutical treatment / From Wikipedia, the free encyclopedia
Negative air ionization therapy (NAIs) uses air ionisers as a non-pharmaceutical treatment for respiratory disease, allergy, or stress-related health conditions. The mainstream scientific community considers many applications of NAIs to be pseudoscience.[1][2][3][4][5][6] Many negative ion products release ozone, a chemical known to cause lung damage. [7]