I also purchased an air quality sensor so I could monitor my indoor air quality. The SimPure is a nice looking unit and works really well. I like that it has four (4) filters all in one. It makes it very easy to change out when the time comes. The fit and finish is excellent. The fan is quiet.
https://www.amazon.com/SimPure-Purifier-Medical-Filtration-Cleaner/dp/B08BBXTVHL

