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The more I look at this thing, the more I would rather be diving outside of it. How am I supposed to fit inside tiny dangerous crevices with this contraption?
 
Since this thread is over a year old (and why it was resurrected, I have no idea), I don't think it's around to worry about anymore.
 
On the page that differentiates their ambient air design from the fully wet designs and the 1 ATA designs, they say this: "If you go deep enough your voice changes and you start to sound like you’ve breathed helium or turned into Donald Duck."

Does breathing regular compressed air (without a modified helium component) at depth really change the voice pitch?
 
ScubaTexan:
Since this thread is over a year old (and why it was resurrected, I have no idea), I don't think it's around to worry about anymore.

Because no one bothers to read the dates!
 
https://www.shearwater.com/products/peregrine/

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