Dive types

- multilevel diving

- repetitive dives, multi-day diving

- altitude diving

depth to 100m / 320ft

altitude to3000m / 9800 ft

Breathing mix

- air

- nitrox (EAN)

- oxygen

- trimix

32%, 36%, 40%, 50%

100%

selected for training purpose

Stops

- safety stop

- deep stops

- decompression stops

Pyle, SSA, NAUI, GF

Safety (general)

- decompression stops

- oxygen toxicity

- partial gas pressure and exposure time

- equivalent narcosis of gases

- depth and time limits

- air consumption (SCR)

- tissue sturation

ZH-L16 (A,B,C)

CNS, OTU

NOAA

NOAA