The Shark Air Purifier MAX 3-in-1 works great for cleaning the air. It has a  with true HEPA filter eliminate  99.8 of micropollutants from the air and helps with pet dander, fur and odors.  It is a 3-1 so it air purifier, purified heat, purified fan and all 3 work great. It has a clear digital read out so you can see the temp and also how clean the air is. It heats very well and senses the temperature to keep it constant.  It has an illuminated light that lets you know if its good or working on cleaning the air. It cleans a large area 1000 sq. ft. It is very quiet.  It also rotates which is great. It has a nice remote control that also sits on the top of the unit so its easy to find.  I really really like this unit and its of high quality. I highly recommend this