Equalisation that works at depth
Frenzel, step by step — and why Valsalva becomes less effective with depth.
FREEDIVING FUNDAMENTAL GUIDE · AUDIOBOOK
Master Freediving. One Breath at a Time.
The complete freediving audiobook covering equalisation, CO₂ tolerance, breath-hold physiology, safety, training and the mental skills behind deeper, calmer dives.
90-second sample
Listen on Audible 9h 11m Unabridged·Professional narration·Beginner → Advanced
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Written by Bassel Ounah·Freediving Instructor Trainer·Competitive Freediver·Founder of Apnea Zone
THE COMPLETE FREEDIVING REFERENCE
One guide for your entire freediving journey.
Build the knowledge behind safer, calmer and more confident freediving with a modern guide that connects technique, physiology, safety and mindset in one structured resource.
- 9 hours 11 minutes of unabridged learning
- Beginner to instructor — useful at every stage
- Available worldwide through regional Audible stores
Choose your local Audible store below. Availability and pricing vary by country.
WHAT YOU'LL LEARN
Go deeper with understanding.
CO₂ tolerance and the urge to breathe
What contraction signals mean and how to train safely.
The mental game
Manage fear without suppressing it. Calm is a skill, not a temperament.
Safety and buddy protocol
The non-negotiables — and the mistakes that put people in hospital.
Building a training plan
Dry and wet tables, progression and knowing when to stop.
Physiology without the jargon
Dive reflex, blood shift and what your body is really doing down there.
LISTEN AT ANY STAGE
Built for the journey,
not just the certification.
Before your course
Arrive fluent in the theory so pool time is spent on skill, not explanation.
After certification
The weeks after a course are when technique embeds or fades. Keep the ideas alive.
Instructors & coaches
A clear, shared vocabulary to hand your own students.
ABOUT THE AUTHOR
Teaching calm
at depth.
I've spent years teaching people to be comfortable somewhere the human body was never designed to go. I kept explaining the same six things to every student and wanted them to arrive already knowing.
Bassel Ounah is a Freediving Instructor Trainer, competitive freediver and founder of Apnea Zone. He wrote the guide to give students a practical reference they can revisit before and after formal training.
READY WHEN YOU ARE
Start listening in
under a minute.
Eligible new members can start with a 30-day free trial.
Listen on AudibleTAKE IT INTO THE WATER
Learn with Apnea Zone.
FREE TRAINING COMPANION
Turn knowledge
into a routine.
Freedive CO₂: Apnea Trainer by Neptune's Submerge creates personalised dry breath-hold sessions from your current ability, with adaptive CO₂ tables, voice cues, progress tracking and adjustable difficulty.
- Personalised CO₂ tables
- Guided timer and voice cues
- Training history and progress insights
Safety: Dry training only unless appropriately supervised. Never practise breath-holding alone in water and never hyperventilate.
Download free on Google PlayUse the free app for structured practice; use the audiobook to understand the physiology, safety and technique behind every session.
FREE FREEDIVING GUIDES
Start learning now.
Keep the full course with you.
Original, practical introductions to the subjects listeners ask about most. Each guide explains the principle, the common mistake and the safest next step.
START HERE
The complete beginner's guide to freediving
Understand the disciplines, equipment, first-course skills and safety principles before your first session.
Read the complete guide →READING GUIDEBest freediving books in 2026
Compare five leading books and choose the right reading path from beginner to advanced.
Compare the books →TECHNIQUEFreediving equalisation: Frenzel, Valsalva and depth
Understand why equalisation changes as pressure increases and why forcing is never the answer.
Read the guide →PHYSIOLOGYCO₂ tolerance and the urge to breathe
Learn what the urge to breathe means and how freedivers approach CO₂ training responsibly.
Read the guide →SAFETYThe freediving buddy system
A clear introduction to supervision, recovery breathing and why freediving is never a solo activity.
Read the guide →FREEDIVING AUDIOBOOK FAQ
Questions before
you start listening.
What is the Freediving Fundamental Guide?
The Freediving Fundamental Guide is a 9-hour 11-minute, unabridged audiobook by freediving instructor trainer Bassel Ounah. It is a safety-first learning resource for beginners, certified freedivers, instructors and coaches.
What does the Freediving Fundamental Guide audiobook cover?
It covers Frenzel equalisation, CO₂ tolerance, breath-hold physiology, safety and buddy procedures, mental preparation and practical training-plan design.
Is this freediving audiobook suitable for beginners?
Yes. It supports people preparing for their first course, newly certified freedivers, experienced freedivers refreshing their fundamentals, and instructors looking for a clear teaching reference.
Can an audiobook or app replace a freediving course?
No. Books, audio and training applications can support theory and dry practice, but they cannot replace qualified instruction, direct supervision or a trained freediving buddy.
How long is the complete audiobook?
The complete audiobook is 9 hours and 11 minutes long and is presented unabridged.
Who wrote and narrates the audiobook?
Freediving instructor trainer and competitive freediver Bassel Ounah wrote the guide. Andy Robert professionally narrates the audiobook.
Safety first. Freediving and breath-hold training should always be practised with appropriate supervision and never alone in water.