Should I get a Nitrox certification?

[Scuba Lawyer]

It's likely just psychological, but I truly feel great after diving hard 4 or 5 dives a day for several days on a 32% mix. After the same dives on air I'm thrashed, beaten and bedraggled. I have no scientific proof on this, mind you none, but I will always opt for higher O2 in my gas on multi-dive trips or even on hours-long shallow cave dives. My 2psi. Mark

 

[60plus]

www.scubadiving.com/training/basic-skills/instruction-cns-oxygen-toxicity

Is worth a read. I think this info is near identical to that taught on several certifying agencies nitrox courses.