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Apnio is your personal freediving and apnea training companion, designed for beginners and experienced freedivers alike. SCIENTIFIC TRAINING METHODS Train with proven techniques used by professional freedivers: • O2 Tables — Build oxygen tolerance with progressive breath-hold intervals • CO2 Tables — Increase CO2 tolerance with fixed holds and decreasing rest • Breath Holding Test — Track and improve your personal best breath-hold time • Square Breathing — Box breathing exercises for relaxation
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