I have had this air purifier for about a month and love it! The highest speed is a little loud but super effective so I turn it down to medium after around 25 minutes or so when I get home. If I get cigarette smoke inside from a neighbor lighting up outside I notice that no smoke is detectable after just 5-10 minutes on the highest speed. It works very quickly in my small apartment. Purchased for fire season in the PNW and for daily use because I'm near a highway and feel really good about the airflow of this model. It also has a beautiful, clean, functional design. I like that I could reorganize the filters so that the pellet carbon filter sits between the pre-filter and the HEPA filter because that order makes more sense to me. Choosing a purifier was stressful because I'm tight on funds and the air quality during fire season is a major concern where I live but after getting a few questions answered kindly and responsively over email I was confident with this purchase and feel really great about my choice. So happy to support a B Corp and have clean air at home!