目次

Deep diving specialty

Certification card

Equipment 1

Equipment 2

Equipment 3

Equipment 4

Prevention for decompression sickness 1

Prevention for decompression sickness 2

Prevention for decompression sickness 3

Symptoms of decompression sickness

Treatment for decompression sickness

Prevention for Nitrogen Narcosis

Treatment for Nitrogen Narcosis

Plans and rules

Changes in air consumption rate

Calculation of dive time limit

Depth limit

Boat support

Diving preparation

Descent

Underwater action

Ascent and exit

Emergency action


Continuously monitor your depth, bottom time, remaining air pressure, and your buddy’s condition.

Maintain slow, relaxed breathing and avoid excessive movement to reduce air consumption and nitrogen absorption.

In conditions of poor visibility, a guideline or distance line may be secured using a carabiner to maintain contact with the descent line and ensure a safe return path.



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