I have a small camper that has been closed up for a few months. When I opened it up it smelled musty. I hooked up the air purifier and the air was noticeably fresher after just a few hours.

I love that it can be run for short periods on an internal battery, or can be plugged into an outlet for longer periods of use.

I can't assess the "value" as I do not know what the retail price for this unit would be.