Some people do not get enough oxygen from the air so are prescribed this therapy to help improve oxygen delivery to the vital organs.
When used appropriately, oxygen can help improve survival and quality of life.
Long term oxygen therapy does not help breathlessness in people whose oxygen levels are not low. It is not a treatment for breathlessness. In COPD, breathlessness is usually caused by difficulty moving air in and out of the lungs, rather than by low oxygen levels.
Your respiratory doctor or nurse will be able to assess you and advise if oxygen would be of benefit. You should not use home oxygen therapy unless it has been prescribed to you by a healthcare professional.
People who smoke cannot be prescribed home oxygen due the fire risk to themselves and others around them.