Should also note, during the height of Covid lockdown in California - I had to get more aggressive about dealing with fumes seeping through from weed smoking neighbors who were now at home all day. I became a sort of air purifier research fanatic LoL and Winix just always had the best consumer satisfaction results when its filtration performance was stacked up against other brands. High function plus affordability. Apparently their customer service line has people actually pick up unlike Levoit - which I only went with due to aesthetics/lightweight structure being better suited for me at the time. And because I knew I wouldn’t take advantage of the ‘Plasmawave’ technology. Now that I am more aware of Winix’s other models, will be making the switch. :) I am not a Winix salesman. Just like my air clean. :)