If you use oxygen, it is natural to wonder whether you can exercise at all, and whether pulmonary rehab is meant for you. The short answer: many people with lung disease use oxygen and still work on strength and stamina. The details, such as how much oxygen you use while active, are individual and should come from your doctor and care team. This guide explains what rehab teams look at, what the research does and does not show, and how to stay safe.
The short answer
Pulmonary rehab is described by the National Heart, Lung, and Blood Institute (NHLBI) as a supervised medical program that helps people who have lung diseases live and breathe better. NHLBI says the team checks oxygen levels during an exercise stress test and may recommend adjusting your regular oxygen therapy during physical activity. In other words, oxygen use is something the team plans around, not a reason to be left out.
Why oxygen and exercise belong in the same conversation
The American Lung Association explains that people with chronic lung disease may need supplemental oxygen, either temporarily or long term. Conditions it lists include COPD and pulmonary fibrosis. Oxygen is usually delivered through nasal prongs (a cannula) or a face mask, and a healthcare provider helps choose the equipment.
Activity asks more of your lungs than rest does. That is why your oxygen needs while walking, climbing stairs or exercising can differ from your needs while sitting. Your doctor sets your oxygen prescription, and the rehab team works within it.
What a rehab team looks at when you use oxygen
Every person starts in a different place, so a good plan begins with questions. Typical things a team wants to know include:
- What oxygen prescription your doctor gave you for rest and for activity
- What equipment you use at home and when you travel
- How breathless you feel during everyday tasks and how quickly you recover
- Your diagnosis, such as COPD or pulmonary fibrosis, and any other conditions
If you are newer to the idea, our guide to what happens in a pulmonary rehab session walks through a typical visit. For ILD in particular, see pulmonary rehab for pulmonary fibrosis and ILD.
What the research says about oxygen during exercise training
This is an area where the evidence is still unsettled, and it is worth being clear about that.
An older Cochrane review of five small trials
A Cochrane review of oxygen therapy during exercise training in COPD included five randomized trials. Training with extra oxygen was linked to a longer time on a constant-power exercise test (about 2.68 minutes) and lower breathlessness at the end of the test. It found no significant differences in maximal exercise, six-minute walk distance, shuttle walk distance, quality of life or oxygenation. The reviewers wrote that it was not possible to determine whether people with COPD should use oxygen during exercise training, and they rated most outcomes as low quality.
A 2025 review
A 2025 narrative review in Medicine and Science in Sports and Exercise (PMID 40500905) reached a similar place. It says evidence from training studies and recent guidelines provides weak or absent support for oxygen supplementation during exercise training in COPD, and it calls for future studies to ask when, how and in which patients oxygen could help people reach specific training goals.
What that means for you
The research does not say that oxygen during exercise is good or bad for everyone. It says the question is still being studied. That is exactly why your oxygen use during activity should be decided with your doctor and care team, not copied from someone else’s routine.
Oxygen safety while you are active
Oxygen does not explode on its own, but NHLBI notes that it can make a small fire spread quickly. These tips come from MedlinePlus home oxygen safety guidance and NHLBI’s oxygen therapy risks page.
Fire safety
- No one should smoke in a room where oxygen is in use. Post no smoking signs.
- Stay about 6 feet (2 meters) from stoves, fireplaces, candles, wood stoves and electric space heaters.
- Keep oxygen away from the stovetop and oven, and watch for grease splatter.
- Keep working smoke detectors and a fire extinguisher at home.
Tubing and storage
- Avoid tripping on tubing. MedlinePlus suggests taping it to the back of your shirt.
- Do not store oxygen in a trunk, box or small closet. Cylinders should have air around them.
- Keep flammable liquids, including oily, greasy or alcohol-based cleaners, away from oxygen.
Skin and nose comfort
NHLBI lists nasal dryness, nosebleeds and skin irritation from the cannula or mask as common side effects. If they persist, tell your doctor and equipment provider, who may adjust your flow rate or equipment. MedlinePlus advises not using Vaseline or other petroleum-based creams on your face or upper body unless your respiratory therapist or provider approves.
Questions to ask your doctor before you start exercising
- What oxygen flow do you want me to use at rest and during activity?
- Do I need a portable system for walking, exercise and travel?
- What symptoms mean I should stop and rest, and which mean I should call you?
- Is pulmonary rehab right for me now, and can you send the referral?
Our guides on referrals for pulmonary rehab and insurance coverage for pulmonary rehab can help with the next steps.
Where Bloom fits
Bloom offers virtual pulmonary rehab from the comfort of home. Every rehab session is one on one and live by video, run by licensed respiratory therapists and clinical exercise physiologists, and billed to insurance. Each patient gets an individualized treatment plan, and we meet every patient where they are. Education sessions about your condition may include other patients. If you use oxygen, tell us how you use it and ask whether your situation is a fit when you call.
For ideas you can use between visits, see exercises for COPD, what exercises you can do at home and pacing and energy conservation.
Frequently asked questions
Many people with lung disease who use oxygen take part in exercise programs. How much oxygen you use during activity should be set by your doctor and care team. NHLBI says a rehab team may recommend adjusting your regular oxygen therapy during physical activity.
Pulmonary rehab is a supervised program for people with lung disease. Oxygen use is one of the things the team plans around. Ask your doctor whether rehab fits your situation and whether a referral is needed.
The evidence is unsettled. An older Cochrane review of five small trials could not determine whether people with COPD should use oxygen during exercise training, and a 2025 review described the support as weak or absent. Your doctor decides what is right for you.
Follow your oxygen safety rules. Stay about 6 feet from open flames and heat sources, never smoke near oxygen, keep tubing from becoming a tripping hazard, and store equipment with air around it, not in a closet or trunk.
Ask when you call. Bloom sessions are live by video and one on one, with an individualized plan for each patient. Tell us how you use oxygen so we can discuss whether your situation is a fit.
Ready to talk about rehab?
Not sure whether rehab fits you? Take our free 2 minute lung health assessment. Ready to take the next step? Call 1-866-972-8228 or fill out the see if you qualify form.
This article is for education only and is not medical advice. Talk with your doctor about what is right for you.
Sources
- American Lung Association: Oxygen Therapy
- NHLBI: Pulmonary Rehabilitation
- NHLBI: Oxygen Therapy, risks
- MedlinePlus: Home oxygen safety
- Cochrane: Oxygen therapy during exercise training in COPD (CD005372)
- Faggian et al. Supplemental Oxygen during Exercise Training in COPD. Med Sci Sports Exerc 2025 (PMID 40500905)
