I just began a serious oral hydrogen peroxide therapy about two weeks ago myself and am noticing already that it has helped with odors tremendously, similar to what you mentioned... a musty odor. For me I had the problem where I could smell it in the room if I was there long enough. I've had symptoms of an system that was too acidic/anaerobic for quite some time and from what I've read hydrogen peroxide is the ultimate therapy to alkalize and oxygenate to restore the body to a normal aerobic functioning system. Here's an excellent article to look at that someone posted in the oxygen therapies forum yesterday that might just convince you.