This air purifier does wonders! I got it because I was waking up stuffy each morning and couldn’t figure out why. This was the hidden secret all along. Once I set up this air purifier, a few days later and I have not woken up stuffy again. Very easy to use and it comes with easy to follow instructions. The air just feels so fresh with this air purifier. I will be purchasing more of these for other things rooms in my house.