My parents live in a very old house (~1700s) and it reduced the dust significantly. Not perfect but maybe it's on the model too. Like it's not an $1000 one which would probably work much better
They're pretty much all the same, just a fan in front of a HEPA filter. If you can get a square fan and tape a HEPA filter in front of it you'd get pretty much the same result as many modern air purifiers.
You're paying for convenience and some bells and whistles (like a mobile app and an air quality reader), but the underlying technology behind it is pretty bare-bones, heavily tested, and heavily used in industrial applications.
You're paying for convenience and some bells and whistles (like a mobile app and an air quality reader), but the underlying technology behind it is pretty bare-bones, heavily tested, and heavily used in industrial applications.