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


Nitrogen dissolved in the body easily dissolves into the brain and exhibits an anesthetic effect equivalent to drinking a glass of martini every 10m.

Improper behavior before, during and after a dive can make you more easy to nitrogen narcosis.

Follow the rules below for a comfortable diving.


*Avoid too much alcohol drinking the night before the dive.

*Avoid taking drugs immediately before diving.

*Avoid steep angle descent.

*When diving at night or in poor visibility, reduce the dive depth.

*If you are diving deeper than 30m, dive with an experienced instructor.

*Experience many dives and remove your anxiety.



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