One Earth Health Adjustable Ozone Air Purifier with New Whisper Quiet Fan Technology NEW TECHNOLOGY: Whisper quiet fan that last longer EFFECTIVE: Ozone generator covers up to 320 Square Feet COMPACT & EFFECTIVE: The ozonator air purifiers rooms in minutes ADJUSTABLE OZONE OUTPUT: 15-50 mg/h to adjust the ozone air purifier DEODORIZES & AIR PURIFIER: smoke, pets, perfumes, body order, old air, etc.