Not way back, enriched air nitrox was one thing solely cutting-edge technical divers used. At the moment, Enriched Air Diver is PADI®’s hottest specialty course. Right here’s what you should find out about incomes an enriched air certification and the professionals and cons of diving nitrox.
People are accustomed to respiration air that’s roughly 79 % nitrogen and 21 % oxygen. Technically, any combination of nitrogen and oxygen is nitrox – that features the air you’re respiration proper now.
Within the scuba realm, “nitrox” (also called enriched air nitrox and EANx) sometimes describes respiration fuel that's 32-36 % oxygen. Extra oxygen means much less nitrogen, and that has some good advantages.
As you discovered within the Open Water Diver course®, nitrogen absorption is likely one of the issues that limits our capacity to discover underwater. Enriched air nitrox lets you:
- Prolong your backside time
- Shorten floor intervals
- Dive deeper on repetitive dives
Is a nitrox certification “value it”?
Should you fancy staying down longer and getting again within the water sooner, then sure; getting nitrox licensed is value it. You possibly can take extra pictures, wave to extra turtles, and spend extra time exploring at depth.
Many divers wait too lengthy to attempt nitrox. They don’t realise the advantages of an enriched air certification till they’re on vacation. Think about this state of affairs:
There you're, on the second day of your diving journey. Your first dive was deep, under 30 metres/100 ft. After a soothing floor interval, you’re looking forward to dive two – a wreck.
In the course of the briefing, the divemaster tells divers on air to thoughts their depth and don’t go deeper than the wreck’s primary deck. Enriched air divers, nevertheless, can discover the whole thing of the ship. You watch with envy because the nitrox divers drop to the underside, comply with a stingray conga line, and uncover buried treasure.
All joking apart, when you plan to do a multi-day dive journey, a liveaboard, and so on., do your self a favor and get nitrox certified. Nitrox lets you spend extra time at depth in comparison with diving on air, which suggests you’ll get much more out of your diving vacation.
Even in the event you’re solely making one dive, however it’s deeper than 15 metres/50 ft, nitrox is useful. Contemplate this:
- In the event you plan a dive to 21 metres/70 ft on air, your most no-stop restrict is 40 minutes.
- When you’re diving 32 % enriched air, the no-stop restrict is 60 minutes
(until you employ up the air in your tank earlier than then).
What are the professionals and cons of nitrox diving?
If enriched air is so nice, why doesn’t everybody use nitrox on a regular basis? Good query, there are a couple of causes:
- Value – enriched air tank fills sometimes value greater than common air fills
- Depth limitations – the utmost depth restrict for nitrox is totally different than air and depends upon the mix (one thing you’ll study as a part of your nitrox certification).
- Availability – not each dive store provides enriched air
- Cylinder necessities – you want a devoted cylinder for enriched air fills
Begin Your Nitrox Certification On-line
Getting nitrox licensed solely takes a number of hours. You'll be able to full most of your nitrox training online. A brief, in-person session with a PADI Teacher the place you’ll practise analysing air (and some different issues,) is all it takes to complete up. There are two elective dives.
You might have heard the nitrox course is difficult and it's a must to use a number of dive tables – not anymore. PADI’s nitrox course was up to date a number of years in the past. Now you employ a dive pc for many the whole lot.