Assessment
CO₂ Tolerance
CO₂ rises during stress, physical effort, and sustained focus. If your body treats that signal like an alarm, breathing speeds up, tension climbs and your performance degrades. This test shows how much room you have before air hunger starts running the show.
Breathe through your noseStay seated and still
How it works
- 1. Follow the orb for 5 calm warm-up breaths.
- 2. On breath 6, take one gentle inhale when prompted.
- 3. Exhale slowly and softly without strain, then tap Stop when you need to inhale.
This is a baseline check, not a challenge. Stay seated, stop at the first clear need to inhale, and return to normal breathing if you feel dizzy or strained.