Dual 3-in-1 filter is 99.95% effective in capturing particles as small as 0.1 microns including viruses, allergens, and germs in spaces up to 4,290 sq ft Mixed-flow fan design maximizes air flow with ultra-quiet operation Suspends from ceilings as high as 20' without connection to duct work EnviroSmart+™ Technology includes a full suite of comfort and control sensors to continuously monitor contaminants, occupancy, and noise levels to proactively respond to changes The integrated suite of IAQ sensors includes particulates (PM10, PM2.5), occupancy, temperature, pressure, humidity (RH), carbon dioxide (CO2), and TVOCs Access to the Array Viewpoint cloud-based dashboard is included at no charge. See Viewpoint Terms and Conditions for details. All units connect through building-wide, secure LTE Designed for long term use, backed with 5-year warranty