For the reduction of a wide range or specific gaseous Chemicals and Odors. Maximum coverage up to 1125 sq. ft. 2 air changeshr. Certified HyperHEPA filtration efficiency proven to remove at least 99 of particles larger than 0. 3 microns and 95 of particles larger than 0. 003 microns. 6 Fan speeds 40 cfm to 330 cfm. Quiet operation from 25dB to 59dB. Intelligent LED Filter Life monitor based on actual use and speed setting. Remote control batteries included. Advanced 3D UltraSeal design eliminates air leakage Total System Efficiency guaranteed. Designed for use in residential or commercial environment.