Max. depth on Air

DIZZY · Jul 11, 2003

What depth would you dive to on Air ? Why?

To clarify: Not as a one time depth due to utter stupidity, just what you think your comfortable with.

Blue Space · Jul 11, 2003

No deeper than 100ft for me.....Acually no more than 100ft on any type on mix for me I just to new to be going any deeper...

Big-t-2538 · Jul 11, 2003

I would say my limit is 120....but if and only if we were warm water and viz wasz good. Other than that, my floor is 100'.....unless I'm on a custom EANx mix for some specific depth...which would be in only a very very rare scenario....

Doppler · Jul 11, 2003

Hi Dizzy:

I don't Dive Air... I use it to inflate my drysuit and the tires on my mountain bike.

I usually mix for a nitrogen load of 3.1 ata which brings things out to a little less than a EAD/END of 100 feet air... however, I also think oxygen should be included in the calculations and so add 1.4 ata (low exposure cold water dose) to the nitrogen load... which of course gives a total of 4.5 ata. That's a lineal depth of about 120 feet.

So I dive to about 120 on nitrox and use trimix after that.

WHY? Well, I can and it's easy. I feel better post-dive. I shoot better video. If the **** hits the fan, I feel better prepared to deal with it. Thermal narcosis is a factor in most of my diving.

Thanks Hope this answers your questions

Solomon · Jul 11, 2003

Depends on the circumstances (i.e. water clarity, number of dives, purpose of the dive/spearfishing). Have been to 180 and routinely drop to 150 on air. REally depends on what type of dive.

double125's · Jul 11, 2003

My max depth on air is 112 FFW. I would go deeper with it but only with a well trusted buddy. After reaching 100+ small mistakes can have big resaults. Stay safe and dive again another day!

Otter · Jul 11, 2003

and that was in 82F water with 100+ viz (Coz) and 2 other trusted buddies.....

Locally, shy of 100 fsw is my limit. Not so much of the issue with the mix, just viz, temp, and not much interesting to see.

Spectre · Jul 11, 2003

On Air? Max is 60, but once this year I ended up hitting 73 on air. Anything over 60 I use Nitrox.

MarcHall · Jul 11, 2003

Nitrox 32 to 80-90 feet.
Triox 30/30 (30 02, 30 He) from 80-120.
Triox 21/35 (21 02, 35 He) for deeper.

Before switching to He base mixtures, I had pretty much given up on attempting to take pictures below 100 feet. Although I would have told you I was somewhat immune to Nitrogen Narcosis due to my frequent exposure, (3-4 dives per week below 100 feet) the quality and composition of my pictures seemed to indicate otherwise.

Marc Hall
www.enjoythedive.com
march@gue.com

MXGratefulDiver · Jul 11, 2003

As in most things, it depends on the diver and circumstances.

For myself, I've been to 137 fsw in warm water and 133 fsw in cold water using air in my cylinder. In the former case, I was slightly narc'ed ... in the latter, more so.

Other divers I know refuse to go below 80 fsw on air because of their susceptibility to nitrogen narcosis.

I'd prefer something like EAN28 to EAN30 for deep dives. But it's not an option in some parts of the world.

... Bob (Grateful Diver)

Max. depth on Air

What depth would you dive to on Air ?

Equal to or less than 100'

Equal to or less than 130'

Equal to or less than 140'

Equal to or less than 150'

Equal to or less than 160'

170 +

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