Breath Training System PRO - CO2, O2

What it does

WARNING: This app is intended for dry practice only. It must not be used during underwater activity, freediving, or as a safety device. Breath Training System combines structured training, real-time feedback, and adaptive performance modeling to help you improve safely and consistently. Whether you train CO2 tolerance, O2 adaptation, or breath-hold control, the system analyzes your performance and guides your progression without interrupting your flow.

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