Shark R-UA205 HEPA Air Purifier MAX

I live in a home built in the 1940s. The basement is more like a cave, plus smokers lived here for decades before us. Prior to moving in, I scrubbed every inch, replaced flooring, painted, and placed smaller air purifiers in the bedrooms. However, I wanted something bigger for the main part of the home, and since every Shark product I've owned over the years has been wonderful, I was drawn to this. I put this in my living room, which is next to my kitchen, dining room, foyer and play room. It works incredibly well in such a large area, and believe me, I have put this thing to the test. I compared it with other purifiers I have in the bedrooms, and I tested it in my bathroom, as well as the basement. When I cook or clean, the air quality percentage drops, and works its way back up. The dust collection on top of the machine alone lets me know it's doing something, but now, when I leave my house for the day and come back, I'm not hit with the musky smell I use to be greeted with! I also have two cats, and I've noticed much less cat fur when I dust. Yay for that! The air purifier is quiet and easy to use, with convenient controls. It is larger in size, but it's super lightweight, so I can easily move it when sweeping. I was weary about ordering a refurbished purifier, and now, after 5 months of use, I can't recommend it enough.