NorthWoodsDiver
Contributor
In order to properly discuss this topic I think we first need to define "deep".
I dive to depths around 140-150' on a regular basis now and do it on air but I dont consider those dives deep if on trimix or with appropriate deco procedures . i would qualify any dive below 220' on air a deep dive because oxygen becomes (possibly) lethal to people at 1.6 pp02 and we all know 1.6 is about 218' (so I round to 220'). But that doesn't mean I dive to 220' on air, although I am planning to.
I would also say any depth below 400' (cause its a good round number) is deep by standards of rebreather.
People always have and always will push those numbers and that can only mean 1 thing... numbers are meaningless to all except the person seeking them.
If your goal is to hit 130' and right now your comfort zone is about 60' than 130' is probably a good goal and with time and training should become totally simple and comfortable but if your comfort zone is 30' and you say you want to dive to 220' than I would question your reasoning.
I do believe that the current record depth set on OC and on air is about 490' and many died trying to hit that depth and few people do that type of diving today because of the technological advancements in rebreathers but if you want to break a record than why not make it a world record.
I dive to depths around 140-150' on a regular basis now and do it on air but I dont consider those dives deep if on trimix or with appropriate deco procedures . i would qualify any dive below 220' on air a deep dive because oxygen becomes (possibly) lethal to people at 1.6 pp02 and we all know 1.6 is about 218' (so I round to 220'). But that doesn't mean I dive to 220' on air, although I am planning to.
I would also say any depth below 400' (cause its a good round number) is deep by standards of rebreather.
People always have and always will push those numbers and that can only mean 1 thing... numbers are meaningless to all except the person seeking them.
If your goal is to hit 130' and right now your comfort zone is about 60' than 130' is probably a good goal and with time and training should become totally simple and comfortable but if your comfort zone is 30' and you say you want to dive to 220' than I would question your reasoning.
I do believe that the current record depth set on OC and on air is about 490' and many died trying to hit that depth and few people do that type of diving today because of the technological advancements in rebreathers but if you want to break a record than why not make it a world record.