About this item SensAir Technology uses the most advanced Auto sensor to intelligently detect, continuously monitor and indicate the presence of harmful pollutants inside the closed environment, in the fastest time. Depending on the quality and quantity of harmful pollutants, SensAir Technology varies the speed and performance to automatically purify the indoor air quality, releasing only pure and safe air inside the room. UV based Microbe Sterilize Technology: The Microbe Sterilize technology absorbs and destroys harmful micro-organisms like bacteria, viruses, pollen, mold, and dust mites that aren’t visible to the naked eye. In fact, it’s so efficient that it permanently deactivates 99.7%* of microbes from your living spaces. Digital PM 2.5 Numeric Indicator: PM 2.5 Numeric Indicator shows real-time PM 2.5 pollutant levels present inside the room in terms of digits.; Touch User Interface: The AP420OAN Air Purifier comes with a touch interface that makes it simple to operate. Filter