Choose Your Poison - Part 1 - AIR скачать в хорошем качестве

Choose Your Poison - Part 1 - AIR

A primer on the pros and cons of the different gas choices we have as technical divers. We start here in Part 1 with a look at air and the concept of partial pressures. From there we will look at nitrox, helium based gases and all the different issues related to our choices. Problems like oxygen toxicity, inert gas narcosis, HPNS and the effects of gas density. NOTE at 4:20 I forgot to say that the 5% oxygen (weird gas) becomes breathable at 40m, because the PpO2 is now 5ATA x 0.05 = 0.25. This is the same as breathing 25% oxygen at the surface. The second error you may have spotted is at 8:15. Slow tissues are those with a poor blood supply or LARGE amounts of fatty tissue (lipid).