I put this in our living room as we are in there the most and it's the most high trafficked area. Depending on the setting it can be very quiet, but even the highest sound is not that loud. It's easy to use and change the filters. While I keep this constantly plugged in after about a week I don't noticed much dirt on the filter. Either there is not much in our air to filter out or it doesn't work as well as I hoped. I have yet to figure out which it is.