It's easy to clean the removable filters. The air seems fresher in my house which is what they are made for. Cleans the air of pet smells and dust quickly.

It operates automatically and even sends me alerts when it senses poor air quality and then takes care of the problem. I'm just so tickled pink with it running normally.

In auto mode it definitely kicks up the fan when you're cooking (mostly when frying things). It is very quiet. The noise it does make is a very nice peaceful white noise.

Would highly recommend this levoit brand. Works well. This product is a great choice for purchasing.

The air quality sensor seems decent enough for what it is. The auto mode, as with any purifier, isn't much more than a gimmick unless you're using it to respond to local wildfires or something like that its sensor will pick up.