Your "it doesn't give you more time underwater" assertion assumes that you're only doing one dive. For multiple dives, it most certainly CAN give you more time underwater on your 2nd and 3rd dive, because you will be doing the repetitive dives with fresh tanks, but the same body. For repetitive dives, nitrogen uptake is a significant factor in dive time.
@LakeHickoryScuba
7 жыл бұрын
SeikiBrian Glad to know you can make an assumption on my statement. But you would be correct, for a single dive the volume of Air or Nitrox, with all variables being the same, a diver will breathe through his gas at the same rate during a single dive regardless of his mixture. I would agree with you completely in terms of decompression time changing, but 80 cubic feet is 80 cubic feet, and 99% of divers, excluding those of us who have thousands of dives, in my case fixing to cross the 6000 mark (yes I am bragging, I am a proud member of the Platinum Pro Foundation) will still have the same RMV rate as they would on air. One thing that I didn't mention in the video was the factor of if they were on a dive charter and made a dive. When the boat captain says be back on the boat in 1 hour, then their maximum bottom time is only 1 hour regardless of their mixture, given if their gas supply will last them 1 hour to begin with. This being the most common reason why people over spend on Nitrox when they could just as easily dive Air. The majority of all Scuba Divers, I would say at least 90% of all divers are only Open Water Recreational divers, who only dive on a charter anyways, and would not be getting the full benefit from Nitrox as a diver who focus on both their SAC and RMV rate on every single dive. This number is verified through training agencies, simply looking at the number of divers they have issued certifications to and what those certifications are. I don't won't people to think that I am against Nitrox because I am not, been diving it for over 20 years and I advocate it to all divers, I just want divers to have a better understanding of what it is, and the true benefits of it.
@johnspyker2454
5 жыл бұрын
I think he eventually articulated that point in the video. May have been advantageous to state that using breathing Nitrox does not affect air consumption rate (SAC rate). The dive ending factor for most new diver meeting their minimum gas reserve (MGR) espeically on first dives. It is only as they gain experience (or on repetitive dives with relatively short surface intervals) when NDL becomes the dive ending factors.
@dios.havanaclub7000
2 жыл бұрын
@seikibrian, I agree. Diving nitrox cuts down your surface intervals so you can be in the water again sooner.
@dean_murray
7 жыл бұрын
Under the right circumstances Nitrox can increase the dive time. It all depends on what is the critial limiting factor that ends your dive, ie if you run out of NDL or Gas first. For my own consumption and tank size. Nitrox can definitely extend the time limit of dives in the 25-30m depth range where NDL starts to become the limiting factor when diving on air.
@LakeHickoryScuba
7 жыл бұрын
Dean Murray You are correct, as stated in the video, the Doppler Time / No Decompression Limit is extended, but the Air Time remains the same. The majority of new divers will still run out of air/Nitrox before they reach their No Decompression Limit. If we remember Boyles Law, the deeper we go the more air we consume, only shorting the time further. This is why to truly extend your time, diving Nitrox with either doubles or side mount configuration is encouraged. This way, one has extended both the Doppler Limit and the Air Time as well, by taking a larger volume of gas with them.
@robbiemify
5 жыл бұрын
You did not listen, the volume in the tank is the same, your breathing rate is the same, Nitrox does not extend your dive time, just your No Decomporession Time !!!!
@Dive_Me_Crazy
6 жыл бұрын
Thanks for this video, really cleared up a lot for me. On our boat dives those of us on nitrogen and those on air always come up around the same time with the about the same amount of gas in the tank. I never thought the expense of a nitrox fill was worth it for most dives.
@LakeHickoryScuba
6 жыл бұрын
You're welcome, glad you liked the video.
@dios.havanaclub7000
2 жыл бұрын
It is worth it if you are gonna make succesive dives, it cuts your surface times.
@bloodymarvelous4790
Жыл бұрын
I would think those diving on nitrogen would come up way sooner than those diving on air.
@anthonylargeanus9401
6 жыл бұрын
Up in the northeast around Long Island, NY nitrox is a very helpful tool for deep recreational dives in the 80-130ft range. People predominantly use single steel 100s or 120s so we have plenty of gas to breathe, so much so that bottom time becomes the limiting factor on our dives. Having 30% (for example) instead 21% really does make a difference if u want to spend that 5-10 minutes extra on the bottom
@LakeHickoryScuba
6 жыл бұрын
With the right amount of air supply, Nitrox can most definitely be a great thing.
@anthonylargeanus9401
6 жыл бұрын
LakeHickoryScuba agreed. Just another tool in the tool box. Thanks for the great videos.
@LakeHickoryScuba
6 жыл бұрын
Very True, and you're welcome
@ss109guy
7 жыл бұрын
I think you could have done a better job describing bottom time with EAN. It does allow me to extend my dives because I run out of bottom time before I run out of gas.
@LakeHickoryScuba
7 жыл бұрын
That's great that you have a low enough SAC and RMV rate that you can reach no decompression limits. Happy Diving.
@robbiemify
5 жыл бұрын
Maybe, depends on your depth and breathing rate !!!!
@micarr177
7 жыл бұрын
Whether using air or nitrox, your personal SAC rate stays the same so even if nitrox increases NDL, you still use your gas within your personal SAC rate so it won't basically increase your dive time.
@LakeHickoryScuba
7 жыл бұрын
Agreed. SAC Rate only changes if you change a variable in the formula such as cylinder size.
@supermotosize
6 жыл бұрын
It will if you have enough extra gas in your tank. On an aluminum 80 you are correct in many circumstances.
@ozjohnno
6 жыл бұрын
I used to get headaches after my dives. Since doing the course and diving with nitrox ever since I have to say that I feel a lot better ofter doing multiple dives with nitrox3 dives, 4dives per day, bring it on !!
@LakeHickoryScuba
6 жыл бұрын
Glad to hear that Nitrox is a benefit to you. That's the most interesting thing about Physiology, everyone's body works a little bit different for each diver.
@dclangst
6 жыл бұрын
The title is a little misleading which seems to have caused some pain points but none of this is untrue. I think these things should be covered in any class, no? Basically can’t exceed your MOD. Cylinder volume doesn’t change whether it’s air or 30%. You get longer NDLs but still can’t stay past how much gas you consume. I dive nitrox on an air profile to give me some buffer and it helps with repetitive dives. See the advantages video to soothe all feelings.
@LakeHickoryScuba
6 жыл бұрын
Dedan Langston, your explanation is spot on. We deliberately titled the video to grab the attention of other divers, primarily new divers. We constantly hear divers who have never taken a Nitrox class before, come in a say they want to be certified in it so they can go deeper and stay longer. We teach Enriched Air Nitrox through 5 different training agencies, SSI, PADI, PDIC, SEI, and CMAS, and in all 5 agencies we clarify this video as you have in your comment. In regards to diving Nitrox on an Air profile, we encourage all divers who have a poor SAC and RMV rate to do the same. Adding a buffer zone into the dive never hurts and thus keeps each diver safer in the long run. Thank You again for commenting.
@robertchambers5756
7 жыл бұрын
Thank you for your quick reply. I will check out your suggested videos.
@LakeHickoryScuba
7 жыл бұрын
Your Welcome
@never2old-sd638
6 жыл бұрын
You are very right about everything you said 👍
@LakeHickoryScuba
6 жыл бұрын
Thank You
@jolo88671
7 жыл бұрын
I got here from a mod from the game subnautica named Nitrox :/
@jamesrose8007
6 жыл бұрын
Great game.
@lisasprite3322
6 жыл бұрын
I am getting into tec diving and one of the prerequisites is EANx. Thanks for video.
@LakeHickoryScuba
6 жыл бұрын
You're welcome, hope it helps.
@OO7FLiiP
6 жыл бұрын
I always thought that since nitrox gives you more oxygen for your muscles, the less air you use and that gives you more bottom time.
@LakeHickoryScuba
6 жыл бұрын
It’s on a very minute scale, in 30 years I have never been able to tell a difference.
@HajdeBreVise
2 жыл бұрын
Man, 21% of oxygen is STANDARD amount od O in air. That means it is NOT enriched. You need to add some more oxygen to enrich it. But good point Nitrox is just short for nitrogen and oxygen
@LakeHickoryScuba
2 жыл бұрын
Hello HajdeBreVise, thanks for sharing your thoughts with us.
@robbiemify
5 жыл бұрын
At last someone who knows what he is talking about !!!!
@LakeHickoryScuba
5 жыл бұрын
Thanks Robbie
@ginobrun1
6 жыл бұрын
I dove a few reef dives a couple weeks back using nitrox 34.5 mix (had leftover gas in tank) had a 55 min dive on the first dive and simillar dive on the second ran out of NDT with about 1000psi left NITROX IS NOT A MYTH it is "misunderstood" would be a better way to put it i think. not to mention not everyone out there is diving aluminium 80's
@LakeHickoryScuba
6 жыл бұрын
Glad to hear you like diving Nitrox. Happy Diving.
@DocRigel
5 жыл бұрын
Didn't know there was that much confusion about nitrox. I like to assume divers are smart people. Good info for anyone thinking about Nitrox. Maybe some other food for thought; a Nitrox banded tank can be used for air so if you band your tank it only adds a certification to hold nitrox but it can hold other gas. Don't always assume a nitrox fill is nitrox without checking the mix yourself.
@LakeHickoryScuba
5 жыл бұрын
Great advice. We will be producing a video very shortly on Nitrox bottle markings.
@retireeslife4013
7 жыл бұрын
You are spot on.
@LakeHickoryScuba
7 жыл бұрын
Rick's Corner Thank You
@Menkalinan
6 жыл бұрын
You can dive longer, in the sense that when your computer would otherwise tell you it's time to finish the dive, with Nitrox you could have stayed a bit longer. OR You can choose to go deeper than usual. OR You can dive like normal, and recuperate faster between repetitive dives. That's how I understood Nitrox.
@LakeHickoryScuba
6 жыл бұрын
Those are great selling points for a Nitrox Course, with the exception of going deeper. This being said, there is much more to enriched air than just the selling points.
@robbiemify
5 жыл бұрын
You did not listen, Nitrox does not allow for deeper diving O2 poisoning becomes a real danger !!11
@JimWellman
6 жыл бұрын
I'm pretty sure higher octane will produce greater MPG, however slight and barely noticeable. Higher octane produces more power. That means I don't need to use as much fuel to go the same distance.
@LakeHickoryScuba
6 жыл бұрын
Anything is possible. When you have a lead foot like mine, gas doesn't last very long, regardless of its grade.
@JimWellman
6 жыл бұрын
I'm a cheapskate, so I *try* and conserve. Doesn't always work out that way.
@LakeHickoryScuba
6 жыл бұрын
Same here. I even tried switching to a lighter shoe, hoping it would help. It just made it easier to push on the pedal. So now I have lost even more gas mileage. All puns put aside, your statement being slightly and barely noticeable, is this biggest reason we don't see that Nitrox changes the amount of air time remaining. No matter what the gas a diver breathes, his consumption will be pretty much the same, based off his activity, his depth, etc. Thus the reason we call it a myth. It is true that more O2 is better for your metabolic rate, but it is barely noticeable for the average diver for any given dive. We see divers all the time in the industry try to squeeze every second they can out of their dive, and rightfully so, but if they would focus more on being relaxed underwater and just enjoy the dive, their SAC Rate would drop and they would gain a few extra minutes of air time, thus giving them more time underwater. For the majority of recreational dives, where you are governed by rules set forth by a dive charter, this is much cheaper than paying for a Nitrox fill vs. an Air Fill. But, To Each His Own.
@JimWellman
6 жыл бұрын
@@LakeHickoryScuba thanks for the info. It's what I came to your channel for. Keep those videos coming.
@LakeHickoryScuba
6 жыл бұрын
Will do. Thank You for watching.
@UniqueScubaLakewoodRanch
7 жыл бұрын
We'd like to see a follow up video on the advantages of NITROX as well...
@LakeHickoryScuba
7 жыл бұрын
We will be happy to do a follow up video. Is there a very specific topic about Nitrox, you would like for us to discuss.
@LakeHickoryScuba
7 жыл бұрын
We shot this video right after the Nitrox Myth Video. kzitem.info/news/bejne/mHuhyqOls3x7d44
@UniqueScubaLakewoodRanch
7 жыл бұрын
Great!
@cmcpetty
7 жыл бұрын
I have heard some say that using a higher O2 level makes or allows a diver to feel better after a dive. Any comments or thoughts on that? As for me, I am not sure having a higher O2 mix makes any difference as the body does not use up all of the O2 in the mix of 21/79 anyway. The higher O2 level would just lessen the nitrogen build up.
@LakeHickoryScuba
7 жыл бұрын
Hey Gary. There are a lot of divers that do claim they feel better after diving "Nitrox". There is no proof of this according to DAN. That been said, if you think it makes you feel better then it does.
@LarsDennert
Жыл бұрын
Nitrox is just nitrogen plus oxygen. Hence the origin of the word. Enriched air is a silly name because it's not why people dive it. I'd rather call it Impoverished Nitrogen or nitrogen deficient gas. It is true that a Nitrox mix will give you the same dive time as 21% on the same profile. It's just that one dive could have supersaturation of Nitrogen ie deco. If you wish to avoid deco you can dive with less nitrogen in the mix.
@LakeHickoryScuba
Жыл бұрын
Hello Lars Dennert, I still call it voodoo gas.
@LarsDennert
Жыл бұрын
@@LakeHickoryScuba we need a voodoo trimix that's not $100 a bottle
@ivoryjohnson4662
7 жыл бұрын
Great discussion topic
@LakeHickoryScuba
7 жыл бұрын
Ivory Johnson Agreed. We have the same conversation with divers all the time on dive boats.
@frankv6044
4 жыл бұрын
So what about surface supplied air?
@LakeHickoryScuba
4 жыл бұрын
Hello frank V, what specific question about surface supplied air do you have?
@smockytubers1188
5 жыл бұрын
I'm a little confused at 3:50 I'm just a novice so I'm probably missing something obvious, but oxygen is toxic? I know higher pressure Nitrogen can become so particularly at certain depths, but I expected this effect would actually be lessened considering there's proportionally less Nitrogen in each swig of air you take in than their would be by breathing normal air of the same pressure. Is there such a thing as Oxygen Narcosis also? Or do I have some basic fundamental aspect of Dalton's law with partial pressures all scrambled in my brain? My assumption was that higher % of O2 per given volume -> higher partial pressure of O2 -> lower partial pressure of N2 -> less risk of Nitrogen narcosis (for the same reason you have reduced decompression times).
@smockytubers1188
5 жыл бұрын
Yep so this wasn't too hard to find with a quick search. Had no idea that pure oxygen was potentially so dangerous at higher pressures.
@LakeHickoryScuba
5 жыл бұрын
Hello Smocky Tubers, in short Nitrogen can become narcotic at higher partial pressures, and oxygen can become toxic at higher partial pressures. This is a key element you will learn during your Nitrox course.
@smockytubers1188
5 жыл бұрын
@@LakeHickoryScuba Thank you sir. Love the videos!
@LakeHickoryScuba
5 жыл бұрын
You're welcome, thanks for watching.
@donnaandrews661
7 жыл бұрын
Nitrox is not a myth, it is a label and its meaning is well understood by everyone but you it seems.
@LakeHickoryScuba
7 жыл бұрын
Thank You for watching our video and commenting.
@JD-hs7ib
6 жыл бұрын
Damn Donna another stupid comment ???
@jamesrose8007
6 жыл бұрын
That wasn't really a stupid comment. More a fact....
@jamesrose8007
6 жыл бұрын
I'm pretty sure nobody is asking for EANx 22 precisely because there is no meaningful difference (and the accepted margin for error in content also happens to be 1%). Like Donna (who you seem to really dislike) pointed out. Nitrox is just a label (for losers to talk about or otherwise as you so graciously pointed out) for an Oxygen/Nitrogen mix with an Oxygen percentage greater than 21%. It's meaning is well understood. There are numbers used to delineate all sorts of arguably arbitrary things in life. Hope you don't get bent out of shape for all those too. You seem unfriendly. Life is too short to try to make someone else unhappy. Life can be miserable enough all by itself. I bet you have a lot of experience behind the nasty comments you make and probably more to offer than they suggest. Maybe consider taking the high road next time and just have a regular conversation (where you may even have differences of opinion) with another human being. J
@JD-hs7ib
6 жыл бұрын
What a waste...your stupidity is boundless LMAO
@fredericv974
6 жыл бұрын
Title is click bait ... your clip does not contest the validity of using nitrox as a breathing gas for scuba. I trained with SSI, PADI, CMAS and GUE (in that order) and no instructor ever expressed any of your proclaimed "myths". There should be an unwatch button.
@LakeHickoryScuba
6 жыл бұрын
Thank You for watching our video and commenting.
@rickkinney2544
6 жыл бұрын
Good to know. Thanks.
@LakeHickoryScuba
6 жыл бұрын
You're welcome.
@robertchambers5756
7 жыл бұрын
I am currently in the finishing process of my rescue diver certification through padi. I like diving deep but never over my certification limits. Some of the dives I am lining up to do is the mighty O and other deep wrecks. How much would a nitrox class benefit me? Is it going to be worth the money for me to take the class In light of the fact I want to make instructor?
@LakeHickoryScuba
7 жыл бұрын
You will get out of Nitrox what you put into it. It is a very informative course to take, as long as your instructor doesn't short change you. Most teach computer only classes now days, so I would seek out an instructor that teaches the calculations. We have a full series here on our channel, call Gas Calculations, I would suggest watching before you take your class. The Science of Diving class, through SSI, is another great class as well. The personal benefit you will get is up to you.
@devildog6899
7 жыл бұрын
Thank you I get into to debate all the time you breathe Nitrox at the same rate you breathe air, so if you are an air sucker you'll suck that Nitrox at the same rate.
@LakeHickoryScuba
7 жыл бұрын
I think a lot of people over think this basic principle. They see it as if you have a higher percentage of Oxygen, then your body will be more relaxed, and thus you will breathe less. Unfortunately, this is very seldom the case.
@johnb2271
6 жыл бұрын
Wow, you really stirred-up the controversial comments on this one, I will give you that. LOL
@LakeHickoryScuba
6 жыл бұрын
Well, I guess you could say it keeps life interesting.
@edregensburg7682
5 жыл бұрын
Going through Divemaster training and appreciate your videos!
@LakeHickoryScuba
5 жыл бұрын
Hello Ed, glad to know our videos are helpful. Good luck on your Divemaster Course.
@swedendive
6 жыл бұрын
NITROX = Nitrogen + Oxygen NITR + OX = NITROX
@LakeHickoryScuba
6 жыл бұрын
Thank You for watching our video and commenting, it means a lot to us.
@yigaldevoogd
6 жыл бұрын
Complete nonsense. Nitrox of course is used for deeper dives. No-decompresion limits for 42 meters according to the padi table is 8 min. But you can hardly get there in 8 minutes. Surely not go down and back up. So the only way to do such a dive is using nitrox. Second reason to use nitrox is nitrogen narcosis, wich can happen after 30 meters. Those are the main reasons for using nitrox.
@LakeHickoryScuba
6 жыл бұрын
Thank You for watching our video and commenting.
@robbiemify
5 жыл бұрын
Stupid twit, Nitrox is not for deeper diving, that is why Nitrox tables computers have a fixex depth limitation which is less than for air !!!
@TedEvert
7 жыл бұрын
I subscribe and watch almost all of your videos, and I really like what you do, but to be honest this video "Nitrox is a Myth" felt a bit like clickbait. I find it hard to imagine that someone could be angry with you for "debunking" these "myths" that are just obvious facts to anyone that had taken (much less taught) a Nitrox course would have to understand. However, I guess you must have run into someone or you wouldn't be making the video, but still . . .
@LakeHickoryScuba
7 жыл бұрын
Thank You for the subscribe, and I am glad you enjoy the videos. I've never really thought about it, but now that I do, I guess all the video titles are clickbait, that is of course what gets people to click on your content. But yes you are correct, as dive professionals we hear people say things all the time, like "I dive Nitrox so I can dive deeper," hence why we made the video. The goal with our KZitem channel is to spread the passion of diving that we have with others, and too also spark interest with others on different diving related matters. Personal opinions on gear reviews or new dive sites will always be one-sided or biased based off an individuals own experience, but one thing about physics is, it never lies and the math / science of such matter will always be misunderstood if not properly taught. If you have any suggestions or request of videos you would like to see in the future, we are open for ideas. Thanks again for your comment.
@jamesrose8007
6 жыл бұрын
Agreed. I guess there are some instructor's who hide all this info? The PADI course definitely spells all this out for you. I no idea how you get your EA cert without understanding all this.
@LakeHickoryScuba
6 жыл бұрын
I’ve always said, the instructor makes a good Course not the training agency.
@jamesrose8007
6 жыл бұрын
LakeHickoryScuba Definitely but the agency makes this all very clear in the provided training material. The only people who missed it are the people who glossed over all the course details. Don't need an instructor for any of this just read the textbook. A good instructor definitely makes the course...just not so much for this particular subject. My opinion only. I think it's great that you put these videos out.
@LakeHickoryScuba
6 жыл бұрын
James Rose Glad you like our videos. If you have any thoughts of future videos or topic you would like for us to discuss, let us know.
@LScottHarrell
6 жыл бұрын
"Nitrox is a made up word! The word doesn't exist!" Then uses the word Nitrox at least 50 times in the next 4 minutes... :-/
@LakeHickoryScuba
6 жыл бұрын
LOL
@robbiemify
6 жыл бұрын
You are just making things more confusing for the mugs that waste their time and money going EANx diving route. The benefits ??? are far outweighed by the restrictions !!!
@LakeHickoryScuba
6 жыл бұрын
I guess everybody has their own reasoning behind diving it. I say if it makes the diver happy, then by all means dive it.
@SomaliCoastguard
6 жыл бұрын
One good reason for diving EAN and why I prefer it is that I find myself to be far less tired at the end of a days diving. Now I'm well aware that there is no scientific support for reduced fatigue and many people put it down to a placebo effect but all I can say is that after a days diving on air I'll need a good long siesta before dinner and an early night, with EAN I feel fine and can enjoy the evening....well as much as one can staying off the alcohol. All we need now is a back gas that lets you enjoy an evening drink without increasing the risk of DCS the next day :)
@LakeHickoryScuba
6 жыл бұрын
Good to hear that Nitrox works for you. Happy Diving.
@JS-el5qz
7 жыл бұрын
I only use it if everyone's on it, if I'm driving with sharks or mantas it allows me to spend more time with them.
@LakeHickoryScuba
7 жыл бұрын
That's good to know that it benefits you.
@hugosantesteban2681
7 жыл бұрын
Watch the video again, EAN 32 or 36 is not going to give you more underwater time, it will allow you to saturate less you body with Nitrogen . . . so if you are doing 5 dives per day, and you are diving with ean 32 or 36, it mean you will have less Nitrogen to desaturate your body
@robbiemify
5 жыл бұрын
Depending on depth and your breathing rate !!!!
@ts440s
7 жыл бұрын
93 octane is not "better" for your modern engine they have fuel management computers that adjust octane ratings. This myth comes from the carburetor days and "engine knock" if your car today knocks you have serious problems that nitrous won't fix.
@LakeHickoryScuba
7 жыл бұрын
Thank You for watching our video and commenting.
@robertbritton656
6 жыл бұрын
john metyk ECMs can't adjust an octane rating. Octane ratings are an attribute of the fuel.
@supermotosize
6 жыл бұрын
You lost me with the “and what not” at the start of the video.
@LakeHickoryScuba
6 жыл бұрын
Sorry about that, must be my Southern Charm.
@MischievousBastard
6 жыл бұрын
If you're on 32% you're gonna hit that 1.6atmo OxTox danger threshold at 40 metres (I'm metric. For the Americans the basic pressure conversion is [Xatmo=(Ymetres/10)+1], and 3 metres is ten feet), and if you go any higher than 32% you'll hit it shallower. At 36% you'll hit the danger zone at 34.4 metres. On standard 21% air however you won't hit the danger zone until 66 metres. I'm a deep specialist. If I'm going below 30 metres (100ft) on a rec dive then I'm packing plain air every time.
@LakeHickoryScuba
6 жыл бұрын
Thank you for watching our video. Make sure to watch our whole series on gas calculations and Nitrox diving.
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