I absolutely love this Shark US-Shark Clean Sense™ Air Purifier MAX with Odor Neutralizer Technology Shark US - Shark Clean Sense™ Air Purifier MAX with Odor Neutralizer Technology. Out of the box. It was easy to install.. my favorite thing is the odor neutralizer which works great. It has 4 speeds, a timer, light dimmer and more options. It tells you have clean your air is which is great. Since using I have notice way less dust and I’m breathing so much better.. I love this thing!