"100 per cent oxygen at 16 psi " would kill you fairly fast.
NASA used pure oxygen but at 21% atmospheric pressure so it was at the same partial pressure as in air, not at 107% atmospheric.
Still burns every thing at a higher rate and temperature as they found out when three astronauts were cooked in their capsule some time back. The very reason that the Russians chose to use just plain air at 1 Atm and take the weight/space penalty.
Biting the hand that feeds IT
