As defined in the PADI Instructor Manual - Training Standards - Mastery Learning, PADI courses are performance based and 'Certification signifies that the student demonstrated mastery of all course knowledge and skill performance requirements.'

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This is the Coriolis effect; an inertial force that acts upon the water and storms so they move clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere.

Email me at This email address is being protected from spambots. You need JavaScript enabled to view it. if you'd like to discuss the options of getting to be a PADI professional and what to do once you're certified. 

Special procedures can always be found on the back of the PADI RDP or on the inside lid of the PADI eRDPml. 

Any activity that causes the diver to breathe an increased amount of gas than their normal consumption rate can result in more nitrogen loading, therefore, must be planned based on that increased loading to remain conservative within the table limits. 

Join one of my upcoming PADI Divemaster, Instructor Development Course or IDC Staff Instructor programs to learn more about the RDP and Deco Theory. 

Just remember the rhyme 'DIN goes IN' and you'll never struggle with this question ever again.

You're welcome! 

All gases want to reach a start of equilibrium. By increasing the amount of oxygen in the breathing mix it will reduce the amount of nitrogen in the lungs it will prompt the diffusion of nitrogen from the diver's tissues. 

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