This is my first air purifier and I’m IN love. The air that one breathing is most definitely cleaner and I just feel better every day. From the windows being open, to our dog, to cooking smells- this air purifier does it all. I leave it on auto in the living room and it kicks up when it needs to, and I love that you can see the “color” of the air cleanliness. I also love that I can turn off the lights when I bring it into the bedroom at night.