deep air

[jvevea]

Mmmm... Not to butt in here (I'm not a technical diver, although I do do deep air to 150 or so), but you DO realize that's at PP02 of about 1.8, don't you? Narcosis isn't the only issue to consider.

I'm not about to do a dive on air past 250'. Why? It's not because someone has told me that I'm going to die; it's because at that depth I personally start to experience directional loss. I aborted the dive. That's my personal line-in-the-sand that I wont go beyond on open-circuit air. There are others on SB that dive air much deeper. For me this would be irresponsible.

 

[Tortuga68]

I'm pretty sure he does realise that

 

[East West]

Thanks for all the reply to this thread and in depth knowedge that has been shared. Both sides of the debate I accept is right . I would like to clarify my first post of taking classes on deep air to 180 ft. before stepping into tri mix are valid . My intention is not to be a deep air diver, but have the ability to handle limited cognitive functions with deep air . I think having the perfect mixture of breathing gas is prudent but also can give one a false sense of security for the recreational technical diver. Say you are cruising on your scooter 243 ft. Matterhorn sea mount clear headed then you see from the side a 12 foot mako shark that has been following you. The adraline rush you receive will make impaired on air a joke. Yes I would use mix when trained at moderate depths but want the edge when **** hits the fan.