I've researched the benefits of oxygen products for years, and I believe they are absolutely vital to maintain a clean and therefore optimally functioning body.
I've tried OxyLift, Biocare's Oxypro, Oxygen Elements Max and Plus. I find Oxygen Elements Plus suits me best. Even at half the recommended dose, the benefits are noticeable: more energy, wide awake as soon as my alarm goes off, and no colds or bugs - ever. Because oxygen actively detoxifies the body, it will do that if your body needs it, so feeling wonderful immediately doesn't always happen - sometimes you can feel pretty dreadful initially if your eliminative channels aren't working properly. The trick is to start at a low dose and increase slowly over some weeks to avoid toxic overload.
I use Oxygen Elements Plus specifically to treat Lyme Disease (along with colloidal silver, herbs, and cleansing etc), which I have had since 27. I am back to feeling 1% healthy - and though it isn't possible to assume the Lyme has gone (I made that mistake early on & got sick again!) I have no Lyme symptoms at all.
I would recommend Oxygen products to everyone for long term good health.