actually we dont mix nitrogen nor oxygen we use normal fresh air.
The normal Air is 21% oxygen + 78% Nitrogen + 1% others.
As humans more oxygen can be toxic for us especially underwater.
However, in some cases "Like with Nitrox" we add more oxygen to make the percentage up to 40%, but this require specific training and certification.
Sure. There is no logical reason not to mix it. Regular air is mostly nitrogen anyways.
Diving in the Dominican is good all year. December is in the midst of the coolest weather with sun/cloud mix but temps average 78F.
A scuba tank holds compressed air or a mix of gases, typically oxygen and nitrogen, that divers breathe underwater. The tank allows divers to stay submerged for extended periods by providing them with a continuous air supply.
The two will mix.
air
Air is 78% nitrogen, and most tyres are inflated with air, so mixing pure nitrogen with air would not be a problem.
Scuba tanks are typically filled with compressed air, which is a mixture of oxygen and nitrogen. However, some scuba tanks may also contain a noble gas such as helium as part of a special gas mix called trimix, which is used for deep dives to reduce the risk of nitrogen narcosis.
For most recreational diving, the gases used are exactly the same as in the air we breath on the surface - approximately 21% oxygen and 79% nitrogen. With proper training, a recreational diver can also use an "enriched air" gas mix which contains more oxygen (up to 40%) and less nitrogen. Technical and Commercial diving involves more exoctic gas mixes (often including helium) and requires significant additional specialized training because breathing gases affect us very differently at depth than they do at the surface.
nitrous oxide? <><><><> Air you are breathing right this second is a mix of nitrogen (79%) and oxygen (21%)
There are various mixes of gases which can be used in diving tanks. The most commonly used one for recreational diving is normal air which consists of 80% nitrogen and 20% oxygen (and a small amount of carbon dioxide, argon and other gases) Sometimes the proportion of nitrogen - oxygen is change as follows: Air (80% nitrogen and 20% oxygen) Nitrox-28 (72% nitrogen and 28% oxygen) Nitrox-30 (70% nitrogen and 30% oxygen) Nitrox-32 (68% nitrogen and 32% oxygen) Nitrox-34 (66% nitrogen and 34% oxygen) These are just examples but different mixes can be made You can also use mixes of nitrogen, oxygen and helium. this mix is called trimix. Hope that helps
78% of the air we breathe is nitrogen. 21% is oxygen, and the other 1% is a mix of other gasses.
The majority of gas used in most SCUBA tanks is compressed air. This air is composed of the same elements everywhere - 21% Oxygen 79% Nitrogen. Advanced SCUBA divers may use an "enhanced" mixture of 32% (up to about 40%) Oxygen with the balance being Nitrogen. The number of divers who use a mixture like this is about 2 to 5% of all certified divers. Less than 1% of all divers may use a special Tri-mix of some rather exotic gases to allow very deep dives - however, it takes years of instruction and training to use these exotic mixes.