This new Shark Never Change Air Purifier MAX is designed to do such a great job on cleaning the air in my home and keeping it smelling fresh. I mean it was easy to setup the high-performance HEPA filter that looks very durable and won’t need to be replaced until 5 years. It was also easy to turn-on the power of the purifier and let it do its thing, and I loved that it comes with a wonderful odor neutralizer cartridge that was easy to insert onto the top of the air purifier. I am so satisfied and happy with my new Shark Never Change Air Purifier Max!