 Ok
firstly, why use Nitrox ? Well it's simple and if everyone took the
time, as you have, to do some research and make the effort to
understand it then everyone would be, without a doubt using it. In
simple terms it almost eliminates, or at least drastically reduces
the risks associated to nitrogen build up, during recreational
diving.
 When
diving, using air you are introducing two main elements
into your system, Oxygen
and Nitrogen. Oxygen, is metabolised by your body to provide energy
and keep you alive, in simple terms it just disappears. Nitrogen
however is more of a problem as the human body can not metabolise
nitrogen and stores it during a dive. Air is comprised mainly of
nitrogen and your body therefore has a problem.
This stored nitrogen
poses a problem, because when you ascend from your dive, all that
stored nitrogen must come back out of those little hiding spaces and
be breathed back out, the more that was stored the bigger the
problem. So your problem is two fold, to stay away from the
saturation levels, you must reduce your dive time, missing valuable
adventuring experience, and secondly by breathing in so much
nitrogen your body has more to breathe back out, increasing your
risk levels as you ascend.
So yes, there are
many potential problems to overcome, but here is your superman
(excluding the pretty red pants), or should we say super-gas,
Nitrox. It's correct name is enriched air nitrox (EAN), and this all
but gives away its nature, because when we make nitrox this is
exactly what we do, we enrich it. We have already stated that your
body works best on and can metabolise oxygen, but suffers due to the
high percentage of nitrogen found in air, so we simply take it out.
You of course still need to breathe the same size lump of air so
what we do is add pure oxygen to your scuba cylinder before filling
it with air, and then simply top up the space as normal. In doing
this the regular 21% oxygen and 79% nitrogen balance is altered, and
dependant on the amount of oxygen added, it may shift to 32% or 36%
oxygen, with the much reduced balance being nitrogen.
Ok that's the physics
out of the way, and now you know why nitrox can benefit you so much,
but how do you start using it? There are certain fundamental changes
in both equipment and training that you must be made aware of before
you switch from regular air and the
IANTD Basic Nitrox Diver
Course is here to
do just that.
Your
IANTD Basic Nitrox Diver
Course is
designed to provide you with the skills and knowledge you require to
use a safer breathing gas for your recreational dives between 12m &
39m. Once you have completed your course, you will be qualified to
use any mix of nitrox from 21% to 40% oxygen, either on standard air
tables or using specific calculations to allow you to extend you
dive time as required.
The course is a two
day programme, consisting of one full day theory in the classroom
where you will be introduced to the theories behind and techniques
specific to enriched air diving along with reviewing your equipment
configuration in relation to this. The second day is spent at an
open water dive site for you to put everything into practice. In the
practical portion you will complete two dives on a suitable nitrox
mix giving you the opportunity to demonstrate your mastery of any
required calculations and experience the benefits first hand.
Equipment requirement
is minimal, in most cases no additional equipment is required and
this is a great way for you to get the most out of every dive you
will ever complete. So no excuses, give us a call right now! |