My living room is open concept and usually I need multiple air purifiers for this room. This one can handle the job. You’d be surprised how at how much normal cooking with a gas stove can impact indoor air quality. This unit gives you a lot of information about what type of air pollution you are experiencing as well as the air quality. I like to use on “auto” mode so it’s set and forget. It has been set up for months now and still works great. Haven’t had to do anything!