Filtrete Smart Air Purifier offers a smart, tech-savvy air-quality solution. It automatically monitors and cleans your air all day, every day in large rooms up to 310 square feet. With Wi-Fi connectivity, you can control this air purifier with your smartphone and keep tabs on indoor air quality using the Filtrete Smart App, Amazon Alexa or Google Assistant. It includes True HEPA filtration to attract and capture 99.97 percent of unwanted airborne particles, such as allergens, dust, lint, mold spores, bacteria, viruses and pet dander (as small as 0.3 microns). Air purifier features a filter life indicator to show the percentage left on your filter's life and when you should replace it with an F1 or C Filtrete Filter. Air purifier also includes auto mode to clear your air automatically, electronic touch controls and a light dimmer. Its CADR (Clean Air Delivery Rate) is 200.