How do you do pursed-lip breathing?
Picture cooling a hot drink. That’s most of it.
- Sit and relaxSit in a chair and let your neck and shoulders drop.
- In through your nose for 2Mouth closed, slow and easy. Not a big breath. Your belly should rise.
- Make a small OShape your lips as if you’re about to whistle.
- Out through your lips for 4 or moreLet your belly fall. Gentle: you’re not blowing out candles.
Try it: in for 2, out for 4
Breathe in through your nose as the orb grows. Breathe out through pursed lips as it shrinks.
2 in · 4 out
Follow the orb: in as it grows, out as it shrinks.
Seconds per phase: 2 in · 4 out. Turn on JavaScript to use the timer.
Runs in your browser: nothing is saved or sent. For haptic taps with your eyes closed, or on your wrist, use ATHA on iPhone or Apple Watch.
Why is the out-breath longer?
The key rule from both the American Lung Association and Cleveland Clinic: exhale for at least twice as long as you inhale, and never force the air out. Slower, longer out-breaths mean fewer breaths each minute. At 2 in and 4 out, a breath takes 6 seconds, which is 10 breaths a minute. A resting adult usually takes 12 to 18.
Who does pursed-lip breathing help?
- People with asthma, COPD or pulmonary fibrosis. It can ease shortness of breath and make activity easier. It doesn’t treat the disease, and it doesn’t replace your inhaler. Check with your care team before you start.
- Anyone with stress or tension. It’s a simple way to slow down, and one of the easiest long exhales to learn.
If you’ve landed here because you’ve suddenly become breathless and don’t know why, please don’t practise: get medical help.
When should you use it?
Cleveland Clinic suggests practising four to five times a day, for five to 10 minutes at a time, in quiet moments like reading or waiting for the kettle. The American Lung Association suggests 5 to 10 minutes daily, and advises learning when you’re breathing comfortably, not when you’re already out of breath.
Once it’s natural, save it for the moments of strain:
- Climbing stairs
- Bending or lifting
- Walking or exercising
Pursed-lip vs belly breathing: what’s the difference?
| Pursed-lip | Diaphragmatic | |
|---|---|---|
| Focus | A longer, slower out-breath | Moving your belly, not your chest |
| Count | In 2, out 4 or more | Out 2 to 3 times as long as in (ALA) |
| Best for | Quick to learn; useful during activity | Practice at rest; takes more effort at first |
They fit together well. Cleveland Clinic’s diaphragmatic steps finish with an out-breath through pursed lips.
Common questions
How long should I do pursed-lip breathing?
Cleveland Clinic suggests four to five times a day for at least five to 10 minutes a session. The American Lung Association suggests 5 to 10 minutes daily.
What does pursed-lip breathing do?
It slows your breathing and keeps the out-breath longer than the in-breath. It can ease shortness of breath in some lung conditions and help you relax, but it doesn’t treat lung disease.
Can it help with anxiety?
Cleveland Clinic says it can help anyone reduce stress, anxiety or tension. It isn’t a treatment for an anxiety disorder.
Should I do it if I feel dizzy?
No. Stop and rest. Call your emergency number if you have difficulty breathing, sudden or severe breathlessness, chest pain, or dizziness or weakness that doesn’t improve.
Can I use ATHA for pursed-lip breathing?
Yes, as a timer. Create a custom pattern with 2 seconds in and 4 out, no holds. ATHA keeps the rhythm, but it doesn’t check your technique and isn’t a medical device.
Where does ATHA fit in?
None of the ten built-in patterns in ATHA is exactly 2-4, so it’s a good first custom pattern: set inhale to 2, exhale to 4, and holds to 0, then save it as a favourite so it shows up on your Apple Watch as well. Your wrist taps the rhythm while you’re climbing the stairs. It’s a timer, not a therapist, but a very patient one.
Hope your next flight of stairs feels a little kinder.
Indie iOS developer, and the maker of ATHA. Say hello on Instagram or at solostaseraofficial@gmail.com.
Sources
Checked on 3 November 2026.
- Cleveland Clinic: Pursed-lip breathing · Last updated 8 July 2026.
- American Lung Association: Breathing exercises · Last updated 22 June 2026.
- Cleveland Clinic: Vital signs · Last updated 15 March 2023.
- Cleveland Clinic: Diaphragmatic breathing · Last updated 30 March 2022.
ATHA is a breathing and mindfulness app, not a medical device, and this guide is general information, not medical advice. It doesn’t diagnose or treat any condition. For a symptom that is persistent, severe or worrying, talk to a doctor. In an emergency, call your local emergency number.