So I got this and set it up on February 12th. Today is March 22nd, and my filter life is at 74%. Not too bad I guess! I know it works because if I'm vaping in the same room as it, it turns another color and the air quality temporarily is affected! It runs pretty quietly, sounding like a small fan. I like the Bluetooth, but it took me a few tries to get it connected and have it stay connected. I use a Google pixel 6 pro. The filters are probably readily available online. I'm not sure on price. But this is a great machine! I wish it told me some of the main pollutants, though. It'd be nice to have some insight on that. But overall I do recommend this!