Builds upon and expands the material introduced in the Limited SafeAir Diver course. Covers the information necessary to make use of all 8 of the ANDI-identified applications of SafeAir within sport diving limits. Those completing this course are certified to use all SafeAir mixtures, including SafeAir 50. This program requires 8 -12 hours of lecture and two open water orientation \ training dives.

Note: Part one (classroom) and part two (open water) are to be completed satisfactorily prior to Limited SafeAir User and Complete SafeAir User certification. A part one certification may be issued upon satisfactory completion of all classroom requirements.

This certification may be used to complete the two logged SafeAir dives required for full certification.

You will get to know the advantages brought about by breathing Oxygen enriched Air and the limitations we must consider, when breathing such mixtures. You will also get to know specified equipment for blending, analyzing and marking and labeling equipment for using Oxygen enriched Air/SafeAir. You will learn how to determine the best breathing mix (BestMix) for a specified depth or to determine maximum operating depth (MOD), at which a specific breathing mixture can still be used safely.

Theoretical knowledge:

• History and evolution of SafeAir

• SafeAir effects on human body

• Mathematical basics

• The Equivalent Air Depth (EAD) formula

• The depth limit formula (MOD–Maximum Operating Depth)

• Signs and symptoms of CNS toxicity (CNS–Central Nervous System)

• Determining the best breathing mixture for a given depth (BestMix)

• Diving equipment modifications

• Proper marking and labeling of SafeAir equipment

Practical exercises:

• Breathing gas analysis

• Dive planning

• Two open water dives using SafeAir

Course duration:

3 days

• Theory: 8–10 hours

• Exercises and open water dives: 3–4 hours

Candidate prerequisites:

• Must be 16+ years old

• AOW certificate or higher

• At least 10 logged dives

• Completed medical statement (or a medical certificate not older than one year)

• Completed liability release and assumption of risk form