Pursed-Lip Breathing
Taught in pulmonary rehabilitation to ease the work of breathing.
Start guided sessionThe pattern
- In through the nose2 seconds
- Out through pursed lips6 seconds
What it is
Breathing out through narrowed lips creates a small back-pressure in the airways. In people with COPD and some other lung conditions, that back-pressure helps keep floppy airways open long enough to actually empty the lungs, which reduces the trapped air that causes the feeling of breathlessness.
It is one of the first things taught in pulmonary rehabilitation, and it is useful for anyone who gets breathless with exertion or anxiety.
Also useful for pain and dental anxiety
The same slow controlled exhale is used during wound dressing changes, injections and dental work, because it gives you something to do with your attention and stops the breath-holding that amplifies pain.
How to use it in real life
The point is to use it while moving, not only while sitting. Breathe in before you start the effort — standing up, lifting, climbing — and breathe out through pursed lips during the effort itself.
How to do it without the app
- Relax your neck and shoulders.
- Breathe in through your nose for about 2 seconds, mouth closed.
- Purse your lips as if to whistle.
- Breathe out slowly and steadily through the pursed lips for about 4 to 6 seconds.
- Do not force the air out — let it flow.
Safety
- If you have a diagnosed lung condition, ask your respiratory team or physiotherapist to check your technique — this site is general information, not a rehab programme.
- Sudden or severe breathlessness, chest pain, blue lips or confusion are medical emergencies. Call emergency services, do not do a breathing exercise.
What the evidence says
Pursed-lip breathing is an established component of pulmonary rehabilitation. Trials in COPD show reduced dyspnoea and improved exercise tolerance, though it does not change underlying lung function.
A plain-English summary for a general audience, not a systematic review. See the medical disclaimer.