Home oxygen treatment

5 min read

Home oxygen treatment involves breathing high concentrations of oxygen from a cylinder or machine in your home.

If you've been prescribed home oxygen, it's because your blood oxygen level is low. This can potentially damage your heart or brain.

The main purpose of home oxygen treatment is to raise your blood oxygen to a level that prevents such harm. It also helps relieve

and other symptoms of low blood oxygen, such as ankle swelling and blue lips.

The following information, for people who receive or are about to receive home oxygen therapy, explains:

  • How home oxygen treatment can help
  • Getting assessed for oxygen treatment
  • Different types of home oxygen
  • Portable (ambulatory) oxygen, for when you’re on the move
  • Suppliers of oxygen services
  • What happens when you go on holiday

How home oxygen treatment can help

If you have a medical condition that leads to a low oxygen level in your blood (hypoxia), you may feel

and tired, particularly after walking or coughing. You may also have a build-up of fluid around your ankles (
) and blue lips.

Breathing air with a higher concentration of oxygen can help increase the amount of oxygen in your blood. This makes it easier to do activities that might otherwise be more difficult. It also helps reduce the symptoms mentioned above.

Oxygen therapy can help people with a range of health conditions that affect breathing or blood circulation, including:

People who have oxygen therapy have different requirements. Some people only need oxygen therapy for short periods during the day, when they're walking about (ambulatory oxygen). Others need it for longer periods and during the night.

Getting assessed for oxygen treatment

If you have a long-term medical condition and your doctor thinks oxygen treatment might be helpful, you will be asked to go for an assessment.

This involves taking a blood sample, usually from your earlobe or wrist, and measuring the amount of oxygen in it. If the amount of oxygen in your blood is low, regular oxygen therapy might be recommended.

If you decide to have oxygen therapy at home, a healthcare professional at the oxygen clinic will work out with you how much oxygen you’ll need and how long you’ll need it for. They'll also discuss the different ways in which you can get oxygen at home.

Once you have agreed this with the oxygen clinic, they will fill in a home oxygen order form for you. This is a bit like a prescription that goes to the company delivering your oxygen and equipment.

The equipment that provides your oxygen will be brought to you, installed and explained fully by one of the oxygen company’s engineers.

Different types of home oxygen

Oxygen can be obtained from:

  • compressed oxygen cylinders
  • liquid oxygen in cylinders
  • an oxygen concentrator machine, which extracts oxygen from the air

Oxygen cylinders

If you just need oxygen for short periods to relieve attacks of breathlessness after an illness, you will probably be prescribed oxygen cylinders. However, this should be reviewed after a certain time so that the short-term relief does not hide more serious underlying heart or lung conditions.

You breathe the oxygen through a mask or through soft tubes in your nose, called nasal cannulae. You can talk, eat and drink while using cannulae.

Cylinders containing oxygen compressed into liquid form can contain more oxygen than standard cylinders. This type of oxygen supply will last for longer, and the tank may also be lighter.

Oxygen concentrator machine

An oxygen concentrator machine is convenient if you would benefit from having oxygen for a large number of hours a day, including while you're asleep. It ensures you have a source of oxygen that never runs out.

An oxygen concentrator is a machine, about two-and-a-half feet (75cm) high, which plugs into your electrical socket. It filters oxygen from the air in the room and delivers it through plastic tubing to a mask or nasal cannulae.

Long tubing can be fixed around the floor or skirting board of your house, with two points where you can "plug in" to the oxygen supply.

When the machine is installed, the engineer or nurse will discuss with you the length of tubing you’ll need. The machine is very quiet and compact, and the engineer will explain how to use it and will answer any questions you have.

A back-up cylinder of oxygen is also provided in case the machine breaks down. Regular maintenance visits will be made to make sure the concentrator is always working properly.

Portable (ambulatory) oxygen

If you’d like to have a small portable cylinder to take oxygen outside your home, talk to your specialist. You’ll need to be fully assessed to see whether portable oxygen (also known as ambulatory oxygen therapy) is likely to be helpful.

Portable oxygen is not recommended if you have

heart failure
or if you smoke.

Portable cylinders can provide oxygen at a rate of 2 litres or 4 litres a minute, or have an adjustable scale up to 4 litres a minute. The flow required is determined by your lung specialist or the oxygen service healthcare professional. When full, these cylinders weigh just over five pounds (2.3kg) and hold just under two hours of oxygen (at 2 litres a minute).

Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.