You should consider oxygen as a medication. Accordingly it should be treated like any other drug prescribed, that is, it should be used in appropriate doses. Just because some is good, it doesn’t mean more oxygen is necessarily better.
Some lung diseases require a certain level of supplemental oxygen when the patient is at rest, but more oxygen is needed during times of exertion. Other lung diseases require a set amount of supplemental oxygen on a continuous basis, and increasing the dosage beyond the prescribed amount could be detrimental. Professor Allen will discuss your own individual situation and determine what is best for you.