This is a really high quality machine. I was able to have it set up in about ten minutes. After installing the filter it was ready to be used. It offers several cleaning settings. I have coal heat in my home so I have loads of dust. I have this set up in my living room and it is working wonders. It has cut down on the dust so I know it's cleaning the air. My room even seems to smell better. My nose has quit running all the time. I'm amazed. I must have had allergies and didn't know it. I would definitely recommend this air purifier to anyone that wants the air in their room to feel clean and fresh. It is a really nice high quality machine.