Instruct: Classify Amazon reviews into positive or negative sentiment
Query: emits ozone

I do not own this product, but I refuse to buy it because it emits ozone from the ionizer, which can potentially be dangerous for your health overtime.Buy an air purifier that doesn't emit ozone. If you want a Honeywell, there are other purifiers under this brand-name that don't emit ozone.But, be sure to do the research yourself, don't trust these corporations.info: epa.gov/iaq/pubs/ozonegen.html