Divers use 21% Oxygen and 79% nitrogen while underwater. It results in the same exact air we breath on the surface.
water proof ones
Some diver use nitrogen to stay underwater for longer but usually compressed air is usedfor those who don't use nitrogen
What kind of companies use natural gas in California?
In a tenths situation is when sky divers use decimals.
unleaded
The use of an oxygen analyzer would be advised. Most nitrox and technical divers have one.
Nitrogen
Hydrogen Gas.
cheap gas
Premium gas
Any inert gas you are breathing.
rough