Shark Air Purifier MAX 3-in-1 is a great air purifier. It has 3 settings (fan, heat, and automatic). I have been using automatic setting and have great, clean,  pure air. It was easy to set up and use when I got it in the package. It didn't take up as much space as I thought it would. I have noticed my sinuses have improved some since using the purifier. It seems to be made of quality materials. It is very easy to use. I have noticed a great improvement in air quality since using it. I would strongly recommend this air purifier.