








Conscious Breathing Institute AB
Trains CO₂ tolerance by gradually increasing rebreathing in measured intervals — the adaptation free-divers chase. A lower CO₂ panic threshold reads as steadier nerves under stress. From the Swedish team behind the Conscious Breathing method.
Materials
ABS plastic body, PVC breathing masks, silicone tubing
Verified voices
3 sources
First produced
2026
On the object
Transform your breath to master stress and fortify resilience.
Who it's for
Who should skip
The trade-off
The Cardihaler requires a commitment to consistent practice and discipline, which may deter those looking for quick, effortless solutions. Its premium price point reflects its specialized design and function, which might not appeal to every budget.
Specifications
Andrew Huberman·Rhonda Patrick·Chris Williamson
Endorsed by
Research
Effects of high intensity interval-based inspiratory muscle training in patients with heart failure: A single-blind randomized controlled trial.
Heart rate variability and slow-paced breathing:when coherence meets resonance.
Also worth a look
What we weighed against Cardihaler before the pick stuck — by price, badges, and what they actually do well.