What's in your pony?

[suprane]

. Again, would you really not call a mixture of 18% oxygen and 72% nitrogen (possibly useful for deeper dives with no He) a nitrox blend? That terminology sounds just fine to me.

One of us is just plain stupid!... I don't know... Could be me!. But I seriously don't think so!
Tell me why anyone would want to increase their nitrogen fraction in order to dive deeper than the MOD of air without having to add helium!?!?
Just how toxic do YOU suppose the nitrogen would be at a depth sufficient to warrant a hypoxic mix with an FiO2 of 18%?!?
And more importantly, if exposed to that level of nitrogen at that greatly increased depth, what do you suppose that would do to your decompression obligation?!?... And just how well do you think YOU could cope with the toxicity/narcosis of that partial pressure of nitrogen?!?

I am curious (since your profile gives no hint).... Just what is your level of certification? And just how involved have you been in diving with exotic mixes and decompression diving?

 

[idocsteve]

Steve, I get the strong sense you're the type of guy who sits up late at night getting upset about things he reads on the internet.

That's both sad and funny.

What's so damn funny about it?

 

[idocsteve]

No. My answer was entirely correct.

Rainer's answer is entirely correct.

This is one of those times you should accept loss with grace.

There is no practical application of the word "should".

As an example as to why that is the case, I ask you the following:

Why "should" I accept loss with grace?

 

[suprane]

Yet you seem to have trouble with the word "pedantic".

No, I understand the term perfectly... But then, I wasn't the one to point out that 21% air was actually "enriched" to the extent of 0.1%!
So who would be the pedant in that discourse?

 

[Rainer]

One of us is just plain stupid!...

Please tell me I get a vote.

<stuff>

Why do most divers reduce the O2 concentration of their gas to <21% below 150'? It isn't for decompression reasons. It's simply to reduce O2 exposure. If you're not going to add He, you can still benefit from lower O2 exposure (sure, at the cost of slightly increased deco times). Plenty of people still dive air to 200'+. Given the small increase in deco time, wouldn't those dives be (at least possibly or theoretically) safer with a lower PPO2?

 

[Rainer]

Why "should" I accept loss with grace?

You shouldn't. Your gracelessness in losing is much more entertaining.

 

[idocsteve]

You shouldn't. Your gracelessness in losing is much more entertaining.

I accept PayPal.

 

[Rainer]

At least you're funny.

 

[idocsteve]

At least you're funny.

I'm just trying to close the gap and catch up to you.

 

[suprane]

Please tell me I get a vote.?

No, you don't! Simply because the more you talk, the more stupid it is obvious that you are!

Why do most divers reduce the O2 concentration of their gas to <21% below 150'? It isn't for decompression reasons. It's simply to reduce O2 exposure. If you're not going to add He, you can still benefit from lower O2 exposure (sure, at the cost of slightly increased deco times). Plenty of people still dive air to 200'+. Given the small increase in deco time, wouldn't those dives be (at least possibly or theoretically) safer with a lower PPO2?

Uhh???? "Small increase in deco time"?? What dive planning software are you using?
And, no, I don't know ANY divers who "reduce the O2 concentration of their gas to <21% below 150'?" by adding more nitrogen! The down side of the increased toxicity of the nitrogen would far outweigh any benifits you might realize from the decreased 02 concentration!.... That's why they came up with TriMix!

And, you have still avoided my question!.... Your certification level and experience with exotic mixes??? .... Too tough a question I suppose!