Home oxygen therapy living
Informed by recognized medical guidance
Overview
Home oxygen therapy is a treatment that gives you extra oxygen to breathe in while you are at home. You get the oxygen through small prongs in your nose or a mask over your face. It helps people whose blood oxygen levels are too low because of a long-term health condition.
Key facts
- Oxygen therapy helps raise the amount of oxygen in your blood, which can reduce shortness of breath and improve energy.
- It does not treat or cure the underlying condition; it is one part of your overall care plan.
- Your oxygen equipment will be set up specially for you, and a healthcare team will show you how to use it safely.
Yes. Many people with chronic lung conditions use home oxygen therapy. It is often part of standard care for conditions like COPD (chronic obstructive pulmonary disease).
Home oxygen therapy is usually used by adults with chronic lung diseases, such as COPD, and some people with heart failure or other conditions that cause low blood oxygen. It can affect anyone, but it is most common in older adults.
Symptoms
- Severe trouble breathing that does not improve with oxygen
- Chest pain or pressure
- Blue or grey lips, tongue, or fingertips
- Passing out or having a seizure
- Sudden confusion or being hard to wake
- ⚠Fever or cough that gets worse
- ⚠A headache that does not go away
- ⚠New mild confusion
- ⚠Oxygen equipment is not working and you feel more breathless
Common symptoms
- Feeling short of breath even when using your oxygen
- Headaches, especially in the morning
- Feeling more tired or confused than usual
Symptoms in children
- Blue or grey lips or tongue
- Fast breathing or flaring of the nostrils
- Extreme tiredness or not waking easily
Symptoms in older adults
- Increased confusion or drowsiness
- Changes in breathing pattern
- Blue lips or fingertips
Causes
Main causes
- Low blood oxygen levels can be caused by chronic lung conditions such as COPD, emphysema, chronic bronchitis, or pulmonary fibrosis.
- It can also result from heart failure, sleep apnea, or conditions that reduce the ability of the lungs to transfer oxygen.
Risk factors
- Smoking
- Advanced age
- Exposure to air pollution or harmful fumes
- A family history of lung disease
- Long-term lung conditions
When to see a doctor
See a doctor urgently if:
- Call your local emergency number if you have severe difficulty breathing, chest pain, blue lips or fingertips, or you pass out.
- Call your oxygen provider or doctor the same day if your oxygen machine shows a warning light or your oxygen levels stay low.
Book a routine appointment if:
- Keep all regular appointments with your healthcare provider to review your oxygen needs.
- Ask for a check-up if you feel your breathing is getting worse over a few days.
Diagnosis
Your doctor may measure the oxygen level in your blood using a small sensor placed on your finger (called a pulse oximeter) or a blood test. If the level is low, they may order home oxygen therapy after a careful assessment.
Tests that may be done
- Pulse oximetry — a small clip on your finger that measures oxygen saturation.
- Arterial blood gas test — a blood sample taken from your wrist to measure oxygen and carbon dioxide.
- Lung function tests — blowing into a tube to see how well your lungs are working.
What to expect at your appointment
A respiratory therapist or home oxygen team will visit you to set up the equipment, explain how to use it, and help you choose the right oxygen flow rate. They will show you how to clean and store the equipment and what to do if it alarms.
Treatment
Home oxygen therapy is a treatment that supplies extra oxygen to your lungs. It does not cure the illness causing low oxygen, but it can help you feel better and stay active. Your care team will explain how many hours a day you should use it and at what flow rate.
Self-care at home
- Use your oxygen exactly as prescribed, even if you feel fine.
- Do not change the flow rate without talking to your provider.
- Keep your equipment clean and check the tubing and prongs for wear.
- Never smoke or use open flames near oxygen.
- Tell your family and visitors about oxygen safety.
Medical treatments
Your doctor will also treat the health condition causing low oxygen. This may include inhalers, medicines to help breathing, pulmonary rehabilitation, or other therapies. Always take your prescribed medicines as directed and discuss any changes with your doctor.
Living with this condition
Set up a routine for using and cleaning your oxygen equipment. Keep the machine where it is safe and dry. Plan ahead for travel by asking your oxygen provider about portable options. Let your provider know if any equipment breaks or needs replacing.
Lifestyle tips
- Quit smoking or ask for help quitting — this is the most important step for your lungs.
- Keep active within your comfort level; a pulmonary rehabilitation program can help.
- Avoid smoky or dusty places and protect yourself from cold air.
- Keep all medical appointments and update your oxygen plan as your health changes.
Diet and exercise
Eat a balanced diet with plenty of fruits, vegetables, and enough protein. Talk to your doctor before starting exercise. Gentle activity such as walking, with your oxygen on, can help maintain stamina, but stop if you feel very breathless or dizzy.
Mental health and emotional wellbeing
Living on oxygen can feel isolating or worrying at first. It is common to feel anxious, depressed, or frustrated. Talk to your doctor or a mental health professional. Remember: using oxygen does not reduce your worth, and many people adapt and continue doing things they enjoy.
Prevention
The need for home oxygen therapy may be prevented in some cases by protecting your lungs. Not smoking, avoiding harmful fumes, and controlling long-term conditions like asthma or diabetes can help slow down lung disease. Once you need oxygen, careful use and follow-up can prevent complications.
Vaccines
Ask your doctor about vaccinations that can protect you from flu, pneumonia, and COVID-19, as infections can make breathing problems worse.
Complications
If left untreated
- If low oxygen is not treated, it can put a strain on your heart and lead to heart failure.
- It can affect your brain and cause confusion or memory problems.
- Chronic low oxygen can make daily activities exhausting and reduce your quality of life.
Long-term outlook
With home oxygen therapy, many people continue to live active and independent lives. It is a safe, standard treatment that helps your body get the oxygen it needs. Work with your healthcare team, follow your plan, and look after your overall health. You can still do many of the things you enjoy.
Find support
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.