yknot
Guest
I was reading the course material for a nitrox course I signed up for and the section on partial pressures has me wondering. While it beyond the scope of a nitrox course, I am also aware that as you decend beyond rec depths you would decrease the O2% below what air contains (21% apx). At some point the O2% would be too low to sustain life, but I don't know what that level is. I believe that the current record depth on scuba is 1010'. At an O2% of 10% that would still be a PPO2 of 3.2 approx. What is the THEORETICAL max. depth for scuba (based on assured PPO2 induced O2 toxicity) while using the minimum O2% required for human respiration?