And limiting your gas to 30 or 32% will also blur the differences. If depth allows, breathing a 40% mix (instead of 21%) delivers a noticeable difference.
Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Unless you are hitting your max bottom time before running low on air, don't waste your money. I'm 60 been diving 44 years working on 45 nitrox certified. Did a few nitrox dives, I found that hanging an extra few minutes on the SS is far better to fight fatigue than any nitrox mix.
The fact that it is a separate cert. is ridiculous. Information that basic should be covered in OW or AOW. IMO the whole nitrox certification thing is board line fraud.
And limiting your gas to 30 or 32% will also blur the differences. If depth allows, breathing a 40% mix (instead of 21%) delivers a noticeable difference.
Agree that Nitrox should be included with at least AOW as a compulsory part of the certification.
Why? EANx is not readily available in some places. Not worth the money (or affordable) to some divers. And not of any meaningful value on some dives... or for air hogs.
So why should something some people will never ever use be a compulsory part of a course?