Skin Diver Manual


Welcome to the underwater world!

Medical Check-up

Skin Diver Course Completion

Skin Diving Equipment

Gear Preparation and Maintenance

Using Your Equipment

Skin Diving Skill

Rules and Manners

Safety Management

Important Points for Ocean Practice
Ear Equalization

Mask Blow

Mask Clear

Dangerous Breathing Methods – Hyperventilation

Light and Color

Poisonous Sea Life 1

Poisonous Sea Life 2

Aggressive Sea Life

Transform into a Fish on your Holidays

Mask Blow

■Mask Blow

If you feel mask squeeze, where the mask feels pulled too tightly around your face, you can equalize by blowing air out from your nostrils into the mask. This “Mask Blow” will resolve the issue.



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