You may be prescribed oxygen therapy if you have been diagnosed with one, or a combination, of the following conditions：
chronic obstructive pulmonary disease and emphysema, lung disease, severe heart disease
You should be assessed by a specialist, who will advise if extra oxygen is useful for your condition。
Oxygen is a medical gas and is prescribed like any other medication. It is regulated by the Medicines and Healthcare Products Regulatory Agency. You must use your oxygen as prescribed and be monitored regularly so that your prescription can be adjusted according to your needs
Oxygen therapy helps improve low blood oxygen levels. This can help you to walk further. It can also reduce the risk of complications such as pulmonary hypertension, which is high blood pressure in the lungs. Most of what we know about the benefits of oxygen therapy comes from studies of people with COPD. But when used as prescribed, oxygen therapy can improve life expectancy in many people.
