SAFE (Ionizer & Ozone information).
Ionic air purifiers (ionizers) are completely safe and not bad for your health. They emit negative ions into the air as a way to clean it which is harmless to you. They're often confused with ozone generators which emit high levels of ozone that can be bad for health.
Negative ions are negatively charged, while ozone is electronically neutral.
Ozone has a high ability to oxidize other substances.