I have the ~$800 pro version early in the video. It's an IQAir. I bought it when I bought my house. We were refinishing the hardwood floors and have a small child. My goal was to knock down the VOCs to make the room safe for him prior to move in.

It runs 24/7 in my bedroom now. Huge improvement in sleep quality. I've only had to change one of the filters once for about $100 after 1.5 years of run time.