it's difficult to answer your question without more information. when people have copd and use home oxygen therapy they often are told not to set the oxygen delivery rate above a certain number. this is very important. it's not exactly because a person can "get too much oxygen " but rather because breathing is not only a matter of taking in oxygen -- it's also a matter of exhaling carbon dioxide. if a copd patient sets their oxygen delivery rate too high they risk upsetting the balance between taking oxygen in and breathing carbon dioxide out. if you retain carbon dioxide it can be harmful to your health. if you have any questions related to your personal oxygen needs or the oxygen requirements of a loved one don't hesitate to ask your primary health care provider or a respiratory therapist. these experts can help you understand how your lungs work whether or not you need oxygen therapy and much more. i hope this answers your question!
can you get too much oxygen