We live in a there bedroom apartment with an open kitchen, dining room, and living room area. This presents a cooking odor problem! To combat that I researched and found this unit (the larger of the two models) on Great Offer Stock at a very competitive price. It was here in a flash (purchased first of June 2014, just now ordering filters for it....I thought I should write a review). The unit is well made, extremely quiet on the first two settings, and electronically stable. At night, I turn it on full blast and it really does refresh the air. Oh, the dust thing is down too.This is not iindustrial grade, but for us...it's perfect.