How Deep on Air

[Michael Guerrero]

How deep do you routinely dive on air?

FYI, by above 1.6 ppO2 I mean greater than 1.6 (e.g., 1.7 ppO2).

 

[MaxBottomtime]

The majority of my dives are less than 85 feet, but I have dived air beyond 1.6 ppO2. I chose the first option on the poll, but that doesn't reflect the entirety of my dives.

 

[ajduplessis]

Above 1.4 ppo2 in open water for the trained and below 1.6 for all other idiots.

 

[Centrals]

Recreational: under 40m
Technical(OW): under 60m
So I clicked 180'.

 

[BluewaterSail]

No answer for those who do not routinely dive on air. Some of us routinely dive on nitrox.

 

[clownfishsydney]

I dive on air for shore dives, Nitrox for boat dives, including wrecks at 45 to 50 metres (up to 170 feet).

 

[waterpirate]

No button for " air is for bicycle tires ".?
Eric

 

[Nirvana]

I may be wrong, but I think the question was how deep do people go without helium on most dives.

If that is indeed the question, I can say that for the kinds of diving I've done so far, I consider using trimix when approaching 50m.

If the question was about routine dives and using air, I can say that most of my "day-to-day" dives are done to 21m or shallower, all on air.

 

[Tigerman]

If I dive air, that normally means I dive less for fun and more for someone elses benefit - which means I don't dictate the dive site and it usually involve some sort of pipes that need some sort of inspection or maintenance and those dives are VERY rarely deeper than 100 feet.

When I dive for fun, I dive EAN with a po2 less than 1.4/1.6...

 

[MXGratefulDiver]

If I'm at home, my max depth on air is 12 feet. I have two AL80's that I use for pool work, and they're the only tanks I own that I routinely fill with air. All my other tanks routinely are filled with nitrox. If I'm going below 120 feet, I add helium.

When I'm on vacation I dive what I can get. If I can't get a gas I'm comfortable diving deep, I'll opt not to do deep dives.

... Bob (Grateful Diver)