Gas, Depth & Breath: Kirk Krack Explains Technical Freediving

From Truk to Pandora: Kirk Krack on Tech Freediving & Avatar A sit down with Performance Freediving International founder Kirk Krack to unpack the emerging discipline of technical freediving. Kirk explains how PFI's partnership with TDI/SDI fits into the broader "all things diving" ecosystem, then dives deep into what truly separates a snorkeler, recreational freediver, spearfisher, competitive freediver, and a technical freediver. We get into the hard physics and physiology: using nitrox and high-O₂ mixes on the surface to reduce decompression stress, accelerate surface intervals, extend bottom time, and build safer safety-diver protocols—while still managing the very real risks of oxygen toxicity and DCS in repetitive deep breath-hold profiles. Kirk shares field experience from Deja Blue safety operations, long scooter dives in Truk Lagoon, and over 250,000+ technical freedives on the set of Avatar: The Way of Water. If you're a tech diver, CCR diver, or advanced freediver curious about applying gas management, ppO₂ limits, and decompression thinking to breath-hold diving, this is your gateway episode into the world of technical freediving.

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Gas, Depth & Breath: Kirk Krack Explains Technical Freediving is an episode from POD DIVER RADIO: The Scuba-cast by Joseph Cocozza.

This episode is 35:23 long.

This episode was published on Sep 11, 2021.

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