Commercial grade wall mount air purifier with proprietary smart sensor technology and integrated air quality display. Four-stage H13 True HEPA Filtration effectively removes at least 99.95% of particles as small as 0.1 microns, including allergens, such as pollen, dust, pet dander and smoke in rooms 300 to 550 square feet. Antimicrobial HEPA treatment applied to the True HEPA filter inhibits the growth of odor and stain-causing microorganisms to extend the filter lifespan. Monitors occupancy and air quality: the air purifier that works harder when you need it powered by EnviroSmart™ Technology. See real time air quality data: PureView ™ Technology shows the percentage of particles captured and a live status of room air quality. Seamlessly integrates in your wall creating whole-room circulation. Designed and engineered for long term use.