One Earth Health Ozone Generator Air Purifier with 30 Minute Timer and New Whisper Quiet Fan Technology NEW FEATURE: 30 minute automatic timer, Disinfects over 98%. NEW TECHNOLOGY: Whisper quiet fan that last longer EFFECTIVE: Ozone generator covers up to 330 Square Feet. Purifies room in minute DEODORIZES & AIR PURIFIER: smoke, pets, perfumes, body order, old air, etc. %. This fan does NOT filter particles like pollen you will need a HEPA filtered fan. OZONE OUTPUT: 50 mg/h. Please research to see if OZONE is right for you. It has a distinct smell. We advise not to run the ozone for more than 30 minutes. Ideal run it when the room is empty.