I love this Shark Air Purifier 3-in-1 its has different features that is really usable. It has fan or heat depends in your weather which is really usable. It can be adjust what temperature you like. It has indicator to what quality of air you have in the house. It has a removable remote control. You can just press the auto to automatically purification power based on the air quality in your room. And it is easy to change the the filter.This air purifier is the best in the market. I use it all day. I really recommend this to all house hold. It is worth buying for. Excellence