One Earth Health Ozone Generator with New Whisper Quiet Fan Technology NEW TECHNOLOGY: Whisper quiet fan that last longer, Purifies 98%. KILLS GERMS - E-coli, Staph, Giardia and even Mold. Covers up to 330 Square Feet LIFETIME WARRANTY - We back our products unlike other competitors. No questions asked. ADJUSTABLE OZONE OUTPUT: 15-50 mg/h to adjust the ozone air purifier. 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. Ideally run it when the room is empty. DEODORIZES & AIR PURIFIER: smoke, pets, perfumes, body order, old air, etc.