Advanced 3-Stage Filtration: The PureAir RAC-16 HEPA filter captures up to 99.99%* of allergens and airborne particles as small as 0.3 microns, including dust, pollen, and pet dander, for cleaner indoor air Continuous Air Circulation: This air purifier filters the air 4.8x per hour in rooms up to 177 sq. ft. or 1x per hour in rooms up to 850 sq. ft., ensuring consistent air quality and freshness* Smart Air Quality Monitoring: The built-in light indicator lets you easily monitor your home’s air quality at a glance, while Smart Mode automatically adjusts settings based on air quality changes Quiet Operation & Odor Reduction: Operating quietly at just 20 dBA* to maintain a peaceful home environment, this purifier traps and reduces 97%** of common household odors from pets, cooking, and smoke 360° Filtration Technology: The cylindrical filter has a large surface area to capture more particles over time, delivering enhanced air purification and an exceptionally high volume of air circulation