Diverl
Guest
Kubefish
I believe that the world record for an air dive is almost 600 feet. A little insane if you ask me. I am sure that someone on this board can give you the exact figure. Your friends dive to 303 feet is possible, however not really recommended. Many of the other members have given you a lot of information so I will try to keep this brief.
There are many things that can affect a diver while diving deep. The obvious consequence of diving deep is nitrogen narcosis. One of the other consequences is oxygen toxicity. If the partial pressure of oxygen is to high, greater than 1.6 ATA, or you expose yourself to a given pressure for a long period of time you run the risk of oxygen toxicity. With Air a 1.6 ATA partial pressure of oxygen happens at 218 feet and your total oxygen clock allows you to stay for 45 minutes. Obviously this is significantly deeper and longer than any no decompression dive that is possible. There are individuals that push these GUIDLINES and go deeper for longer, however they risk blackouts and other potential serious problems. A persons physical fitness, mental fitness and diving comfort/ability will greatly effect an individuals ability to successfully complete these dives.
My advice stay above 220 feet on air.
Enough preaching, dive and have fun. If you want to go deep go slow, dive with people who have deep experience and get the proper training. There is a lot to see so enjoy!
I believe that the world record for an air dive is almost 600 feet. A little insane if you ask me. I am sure that someone on this board can give you the exact figure. Your friends dive to 303 feet is possible, however not really recommended. Many of the other members have given you a lot of information so I will try to keep this brief.
There are many things that can affect a diver while diving deep. The obvious consequence of diving deep is nitrogen narcosis. One of the other consequences is oxygen toxicity. If the partial pressure of oxygen is to high, greater than 1.6 ATA, or you expose yourself to a given pressure for a long period of time you run the risk of oxygen toxicity. With Air a 1.6 ATA partial pressure of oxygen happens at 218 feet and your total oxygen clock allows you to stay for 45 minutes. Obviously this is significantly deeper and longer than any no decompression dive that is possible. There are individuals that push these GUIDLINES and go deeper for longer, however they risk blackouts and other potential serious problems. A persons physical fitness, mental fitness and diving comfort/ability will greatly effect an individuals ability to successfully complete these dives.
My advice stay above 220 feet on air.
Enough preaching, dive and have fun. If you want to go deep go slow, dive with people who have deep experience and get the proper training. There is a lot to see so enjoy!