What Does the “ION” Button on a Fan Do? (Is It Safe?)

If you’ve ever noticed an “ION” or “Ionizer” button on a fan and wondered what it actually does, you’re not alone. In this short explainer, we break down what the ion setting on a fan is designed to do, how ionizers work, and whether using the ion mode is safe in everyday household use. We also explain why ionizer fans have limited air-cleaning ability and when it makes sense to leave the feature off. This video is for homeowners who want a clear, practical explanation — without hype or scare tactics. Read the full explanation here: https://breathebetterair.org/air-purifiers/what-does-ion-mean-on-a-fan/