The leader in residential indoor air quality brings to market a zero ozone certified air purifier built using TRUE HEPA filtration and one of the most comprehensive array of air filtration technologies available. When you buy an air purifier, it's usually because you want your air to be cleaner. Unfortunately, some products on the market emit low levels of ozone. This chemical can cause respiratory damage at a cellular level. The Broan-NuTone Air Purifier is third-party certified to emit zero ozone. This single-room air purifier has advanced auto-sensing technology, automatically detecting TVOCs and particulates (PM.1, PM2.5, and PM10), which are the size of respiratory droplets, dust, and pollen. It will automatically increase the fan's speed to remove detected particles and VOC's quickly without you having to take action. When the air is clean, it automatically reduces the speed back to regular maintenance speed, ensuring clean air without sacrificing energy efficiency. This product also has a built-in ultraviolet light that emits on the surface of the filter. You can adjust the air purifier's settings from your phone or connect Alexa or Google devices. With the new Air Purifier, you can be confident that the air in your room is better, making your life better. At Broan-NuTone, Better Quality of Air Means Better Quality of Life