What is Nitrox made of?

Asked by: Henry Reyes

In the broadest sense, Nitrox is any gas blend of oxygen and nitrogen. Air, of course, is basically a nitrox mix of approximately 21 percent oxygen and 79 percent nitrogen. For divers, enriched air Nitrox is any gas blend with more than 21 percent oxygen.

What does nitrox contain?

Nitrox refers to any gas mixture composed (excepting trace gases) of nitrogen and oxygen. This includes atmospheric air, which is approximately 78% nitrogen, 21% oxygen, and 1% other gases, primarily argon. In the usual application, underwater diving, nitrox is normally distinguished from air and handled differently.

What is the most common nitrox blend?

A: Nitrox (oxygen enriched air) is any mixture of oxygen and nitrogen. The most common nitrox mixtures used in recreational diving are nitrox 32 (32% oxygen and 68% nitrogen) and nitrox 36 (36% oxygen and 64% nitrogen).

Is nitrox safer than air?

Nitrox at work



This happens since the gas mixture has less Nitrogen in it, so the amount of nitrogen absorbed in your blood is reduced. Secondly, using Nitrox while diving air profiles is generally safer in a decompression sense than using air.

At what depth does nitrox become toxic?

However, when diving on nitrox, the potential for oxygen toxicity lurks well within the depth range of recreational diving: the maximum depth on 32 percent nitrox is 121 feet; on 36 percent nitrox, it’s just over 100 feet. Many divers regularly cruise at these depths and even deeper without giving it a second thought.

Can you put air in a nitrox tank?

Filling a Nitrox tank with air is possible. However, once you do the tank is no longer safe to be used for Nitrox until it has been oxygen serviced. Any tank having a standard air fill will need to be serviced before using EAN. If you plan on using both air and Nitrox, it may be best to get a second tank.

Which gas is used by deep sea divers?

Deep sea divers normally breathe a mixture of nitrogen and oxygen, called nitrox or EAN (Enriched Air Nitrox). While Earth’s atmosphere is 78% nitrogen and 21% oxygen, nitrox is typically 32-36% oxygen.

What is the 40% rule in nitrox diving?

If we are diving with 40% O2 Nitrox, the depth limit for oxygen toxicity is only 25 meters. While diving with Nitrox reduces the risk of DCS, it increases the risk of CNS toxicity.

How deep can I dive with 34% nitrox?

Calculating Enriched Air Nitrox Depth Limits

Can you dive deeper with nitrox?

You can simply reduce the risks by doing the same dive profile but on Nitrox. Though, you can’t dive deeper with Nitrox! Even if many people may think so. Nitrox is actually inappropriate for deep dives!

How do you blend Nitrox?

All you're going to do is take point three six point three six you're going to times it by 200. It's going to give you 72 bar.

How do you blend Trimix?

So if you want to blend in nitric 32. You need to know how much oxygen you need and that's pretty simple the oxygen pressure you need is simply 14 of the desired fuel pressure.

What is the best way to compare the levels of oxygen found in various types of breathing gas?

You can find it by multiplying the oxygen percentage of the EANx by the absolute pressure (in atmospheres or bar). For example, a diver breathing air (21 percent O2) at 132 feet (5 ata) is breathing a partial pressure of oxygen (PPO2) of 1.05. This would be equivalent to breathing 105 percent oxygen at the surface.

Why do divers not use pure oxygen?

Diving with pure oxygen deeper than 20 feet can cause a person to absorb more oxygen than his system can safely handle, leading to central nervous system (CNS) oxygen toxicity. CNS oxygen toxicity causes a diver to go into convulsions (among other things).

What happens if you breathe pure oxygen?

To breathe pure oxygen at that level for any longer can have toxic results, including “shock lung,” or adult respiratory distress syndrome. In infants, too much pure oxygen for too long a time can also lead to retinal problems as the blood vessels in their eyes won’t develop properly.

How deep can you dive without a certification?

18m/60ft

-Javier Cantellops. The short, super long answer is… as an Open Water certified diver you are qualified to dive “independently” (with a buddy of course), without a certified professional guiding you, to 18m/60ft. This is why we recommend continuing your scuba education and going on more dives.

What is the deepest dive ever made?

1,082 feet

The deepest dive ever (on record) is 1,082 feet (332 meters) set by Ahmed Gabr in 2014. That depth is the equivalent of approximately 10 NBA basketball courts aligned vertically. In terms of pressure, that’s about 485 pounds per square inch.

How deep can a divemaster dive?

You will make three deep dives with your PADI instructor to maximum depths of 30 meters/100 feet, 24 meters/80 feet, and 40 meters/130 feet respectively.

How deep can a human dive?

The maximum depth reached by anyone in a single breath is 702 feet (213.9 metres) and this record was set in 2007 by Herbert Nitsch. He also holds the record for the deepest dive without oxygen – reaching a depth of 831 feet (253.2 metres) but he sustained a brain injury as he was ascending.

Can you fart while diving?

Farting is possible while scuba diving but not advisable because: Diving wetsuits are very expensive and the explosive force of an underwater fart will rip a hole in your wetsuit. An underwater fart will shoot you up to the surface like a missile which can cause decompression sickness.

How deep do navy seals dive?

How deep do navy seals dive? Navy SEALS usually do not need to be extremely deep in their water for their work. But depending on the diving training extensiveness, they’re likely to be certified for diving 100-130 feet or even deeper with lots of technical certifications following.

Can you dive to the Titanic?

You cannot scuba dive to the Titanic due to its depth at 12,500 feet. Air consumption: one standard tank lasts 15 minutes at 120 feet. Supply for 12,500 feet would be impossible to carry even with a team. The deepest dive on record with special equipment, training and a support team is 1,100 feet.

Are there still bodies on the Titanic?

No one has found human remains, according to the company that owns the salvage rights. But the company’s plan to retrieve the ship’s iconic radio equipment has sparked a debate: Could the world’s most famous shipwreck still hold remains of passengers and crew who died a century ago?

Who owns Titanic wreck?

RMS Titanic Inc.

People have been diving down to the Titanic’s wreckage for around 35 years. But so far, no one has found human remains, the company that owns rights to the wreckage says. Now the company, RMS Titanic Inc., is planning for a new expedition that is raising concerns.

Was there a blue diamond necklace on the Titanic?

Though it seemed like a pretty piece of fiction created by James Cameron, it turns out that there was a diamond and sapphire necklace on board that fatal night, given to a young girl, Kate Florence Phillips, 20, by her married paramour, Henry Samuel Morley, 40.

Was the Heart of the Ocean ever found?

It was found in 1668 in India. After being circulated through the French nobility, it was stolen and disappeared, later to be found in England. However, the stunning piece of jewelry is surrounded with myths and superstitions.

Where is Heart of the Ocean now?

The necklace, designed by jewellers Asprey & Garrard, was worn by Celine Dion as well as the actress who played Rose as an old lady in the film Titanic, Gloria Stuart. That Heart of the Ocean is presently exhibited in a museum in Cornwall.