It's so amazing how easy and efficiently the Shark Air Purifer Max works. I could tell the difference in my air in my house right away.  It's very impressive that it captures 99.98% of particles, dust, allergens, and viruses, smoke. This is great to have with all of the sickness going around. The buttons are very easy to control. It also does not take up a lot of space. It is very well designed as well. Performance is top notch!