The OEM AeraMax Air Purifier with Sensor FEL9286001 effectively purifies air in small rooms up to 90 square feet. The AeraSmart Sensor monitors air quality and automatically adjusts the fan speed to maintain optimal purification. It features a True HEPA filter with AeraSafe antimicrobial treatment, which safely removes 99.97% of airborne particles as small as 0.3 microns. This purifier is extremely effective at capturing influenza viruses from indoor air, while the carbon filter removes odors and captures large airborne particulates.