Module Two 

Lesson ten: Air (Gas) Depletion Exercise

Course Complete

This exercise lets you experience what it feels like to run out of air, which is part of learning to respond appropriately.

gas depletion
  • Watch your SPG as your instructor closes your cylinder valve.
  • Breathing becomes difficult as the pressure goes down.
  • Signal “out-of-air” when you can’t get a breath.
  • Your instructor reopens the valve. You’ll see the SPG reading return to the previous pressure. Resume Breathing.
  • For colder water diving, you can get low-pressure hoses with oversized release fittings to make this easier while wearing gloves.
  • Be sure to reconnect the hose after finishing the exercise.

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Module Two

Being a Diver

Being a Diver

Lesson One: Seeing and Hearing as a Diver

Lesson One: Seeing and Hearing as a Diver

Lesson Two: Swimming and Moving

Lesson Two: Swimming and Moving

Lesson Three: Staying Warm

Lesson Three: Staying Warm

Lesson Four: Breathing Effectively Underwater

Lesson Four: Breathing Effectively Underwater

Lesson Five: The Buddy System (continued)

Lesson Five: The Buddy System (continued)

Lesson Six: Managing Your Air Supply as a Buddy Team

Lesson Six: Managing Your Air Supply as a Buddy Team

Lesson Seven: Swimming at the Surface

Lesson Seven: Swimming at the Surface

Lesson Eight: Descents in Open Water

Lesson Eight: Descents in Open Water

Lesson Nine: Ascents in Open Water

Lesson Nine: Ascents in Open Water

Introduction for Equipment II

Introduction for Equipment II

Lesson One: Exposure Suits I

Lesson One: Exposure Suits I

Lesson Two: Cutting Tools

Lesson Two: Cutting Tools

Lesson Three: Dive Gear Bags

Lesson Three: Dive Gear Bags

Lesson Four: Dive Instruments

Lesson Four: Dive Instruments

Lesson one: Introduction for Your Skills as A diver II

Lesson one: Introduction for Your Skills as A diver II

Lesson two: Deep Water Entry – Giant Stride

Lesson two: Deep Water Entry – Giant Stride

Lesson three: Weight Check and Proper Weighting

Lesson three: Weight Check and Proper Weighting

Lesson four: Dealing with a Loose Cylinder Band

Lesson four: Dealing with a Loose Cylinder Band

Lesson five: Snorkel Clearing

Lesson five: Snorkel Clearing

Lesson six: Snorkel Regulator Exchange

Lesson six: Snorkel Regulator Exchange

Lesson seven: Neutral Buoyancy

Lesson seven: Neutral Buoyancy

Lesson eight: Mask Removal and Replacement, and No-Mask Breathing

Lesson eight: Mask Removal and Replacement, and No-Mask Breathing

Lesson nine: Disconnecting Your Low-Pressure Inflator

Lesson nine: Disconnecting Your Low-Pressure Inflator

Lesson ten: Air (Gas) Depletion Exercise

Lesson ten: Air (Gas) Depletion Exercise

Lesson eleven: Air Awareness and Managing Your Air Supply

Lesson eleven: Air Awareness and Managing Your Air Supply

Lesson twelve - Deep Water Exit – Ladder Exit

Lesson twelve - Deep Water Exit – Ladder Exit

Knowledge Review Two

Knowledge Review Two

Module Two quiz

Module Two quiz

Course Complete

I'll take you diving!

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