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⏱️ The instant breath test — no sign-up

How long can you
hold your breath?

The free online breath test — tap start, hold your breath, tap stop when you breathe again. A simple at-home lung test for your lungs.

One calm ~80% breath in, then hold.

Ready

🪑 Sit down. Don't hyperventilate first. Stop if dizzy. Never in water.

Spacebar stops a hold anytime; focus Start to begin with keyboard. Your best (full-lung): —

Your result

Take the test to reveal your tier 👇

🌊 Warming Up

0–20s

🍃 Steady Breather

21–40s

🤿 Deep Diver

41–60s

🫁 Iron Lungs

61–90s

🐬 Freediver in Training

91–120s

🏆 Apnea Master

121–∞s

More than just a number: you'll get a tier, a rough comparative estimate, a shareable tier card, and a tip to improve your score.

✓ Client-side timer — instant, no server lag✓ Fair rules: seated, no hyperventilation✓ Fun benchmark, not a medical diagnosis

Free widget by breathtestonline.com — copy the snippet on thehomepage embed section to add it to your site.