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Decompression

3:36

The Science of Breathing Underwater

3:03

Scuba Diving for Beginners - Understanding Atmospheres Underwater is Easy

1:18

Decompression Sickness (1/2)

2:22

Decompression Illness

2:32

Divers at risk of decompression sickness, paralysis

The decompression of a diver is the reduction in ambient pressure experienced during ascent from depth. It is also the process of elimination of dissolved inert gases from the diver's body, which occurs during the ascent, during pauses in the ascent known as decompression stops, and after surfacing until the gas concentrations reach equilibrium. Divers breathing gas at ambient pressure need to ascend at a rate determined by their exposure to pressure and the breathing gas in use. A diver who only breathes gas at atmospheric pressure when free-diving or snorkelling will not usually need to decompress, Divers using an atmospheric diving suit do not need to decompress as they are never exposed to high ambient pressure.
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    • Types 

    • Decompression theory 

    • Decompression practice 

    • History of decompression research and development