A:AnswerIt works great! We recommend having windows closed while running the machine. Be sure air can circulate freely around the machine, so place it at least a foot away from walls or furniture. In a 400 sq. ft. room the machine filters the air 3 times per hour. You can adjust the speed setting based on the what the display feedback is showing.
A:AnswerI do not believe the filters can be washed, especially since one is carbon. With average air quality, the filters should be replaced every six to eight months.