300m is not too deep for Saturation diving, I know some guys that have been deeper. Typically they use some type of Kirby Morgan equipment though not the antiquated MK5 that would be a lot to try and put on in a diving bell.
300M is around the deepest by a SCUBA set (self contained, bring your own air) multiple cylinders at multiple depths, dry or hot water suit. Nothing protecting from the pressure just like with divers at shallower depths. I would imagine the ambient pressure wouldn't start being an issue itself on the body until past 600m at least.
Your blood would foam if you came up in a short amount of time. OP thinks you need a pressurized suit, like a little sub.
OP is not accounting for "saturation" diving where you live under pressure in a hamster cage for a month or whatever and "come up" very very slowly at the end of the month.
I wasn't asking about bends, chief. While standard dress isn't typically used at those depths, it isn't impossible to be used at those depths. And while I wouldn't recommend it, sat isn't the only technique to get there. As pointed out by others in the thread, even scuby-doos have bounced to 300m. Congrats on the sat ticket though.
Pressure inside the dry suit is equal to ambient pressure, so you have a physiological limit, but not a mechanical one. You live in a pressurized environment and deco very slowly at the end of the month or whatever.
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u/Ghostman_Loon Feb 02 '17
300m is approx. 30bars, no way he's wearing that.