Plain-English study books written by a certified bell diving supervisor, built on the current IMCA and DMAC documents, with worked examples, exam traps, quick checks and a practice paper in every book. PDF download, yours to keep.
Every calculation on the exam, worked step by step in metric and imperial.
In final review: notify meWhat pressure and gas do to the body, and what to do when it goes wrong.
In final review: notify meWorking practices for the air diving supervisor.
In final review: notify meBell, chamber and life support practices for the BDS and LST.
In final review: notify meEverything for your exam: full question bank, timed mocks, study plan and the three books that cover it.