i think so long as the lungs are inflated the rest of the body can withstand a much lower atmospheric pressure (higher, also, which is why that liquid oxygen dissolving material like was depicted in The Abyss exists, as it stops the pressure of deep under sea). the lungs are the main thing that restricts our range at altitude and depth.

i doubt it would be pleasant to be more than a few hours with most of your body at that level of pressure though, in either direction.