I have bought this product twice now, because my basement is stuffy and musty. Safe T Air is a natural product which removes the problem and doesn't mask it. It seems to really do the job. I like that it's safe and controls mold, bacteria and fungi.
It provides a somewhat minty smell which you don't notice in a big room, but I wouldn't put it too close to where you're sitting, but I'm not a fan of scents myself.