<unk>  (NAIs) uses<unk>  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. Many<unk>  ion products release ozone, a chemical known to cause lung damage.
Negative air ionization therapy
Exposure therapy
Cytoluminescent therapy
Particle therapy
Narrative exposure therapy
Electromagnetic therapy
Electron therapy
Pulsed electromagnetic field therapy