Doctor insights on:
If the oxygen finger sensor showers good oxygen level. Does that mean your getting good oxygen to you brain as well?
Oxygen Toxicity: Normal room air is 21% oxygen. That will not hurt you. Diving with 100% oxygen can cause some respiratory problems. Prematures on extra oxygen can develop serious eye problems. Hyperbaric oxygen, for a long time (maybe 12 hrs or more) can hurt you. Most of these situations will not kill you. Also severe fires are accelerated by excess oxygen, so smoking on oxygen has killed people. ...Read more
Oxygen toxicity: Hyperoxia likely exists whenever oxygen tension exceeds 21% of atmospheric pressure. It appears to produce cellular injury through increased production of reactive oxygen species, such as hydrogen peroxide, superoxide anion, and hydroxyl radical. Oxygen toxicity refers most commonly to resulting tracheobronchial injury and damage to the tissue of the lungs. ...Read more