SCUBA SCIENCE 03: The GASSES of SCUBA Diving

[@MrGlenndini]

Comprehensive and concise, nice.

[@DiveSAGA]

I tried to keep it clear and simple! 😄

[@EricBovelander]

great article, and very clear explanation, thnx for sharing 👌

[@DiveSAGA]

@@EricBovelander You're welcome! Thank you for your support! 👊

[@turbojet18]

Clear, interesting and safety wise helpful! Maybe one day ill try trimix! Thanks for the video

[@DiveSAGA]

@@turbojet18 thank you for your enthusiasm! 👊

[@tanmaydeshpande7528]

I was aware about trimix and heliox and watched a video of a cave diver who dove to 245 meters in new zealand at that time he used hydrogen but it was an experiment. Today on dive saga channel I realised that hydrogen is still beinf treated as an experimenal gas however as he rightly said much more research and analysis will be done in the future about the effects of breathing gases on human body under tremendous atmospheric pressure under water be it ocean or sea. Enjoyed this content. Love from India. I am a PADI advanced open water certified diver.

[@DiveSAGA]

@@tanmaydeshpande7528 thank you! 👊🇮🇳 It will be interesting to see what the future brings in terms of breathing gasses!

[@petethehandyman9185]

Very good explanation, you must be a great instructor, thanks

[@DiveSAGA]

@@petethehandyman9185 thank you! I do my best! 😄

[@SummersideDiver]

Very thorough and easy to understand explanation! I literally just took my Nitrox class so quote a bit of that info is fresh in my mind. Nitrox is not necessary for most of our local dives, where I’ve been maxing out around 50’ for typically less than an hour, but I’m likely to start going deeper and would like to increase bottom time (while always respecting MOD and PO2). Again , great presentation! Thanks for putting this series together.

[@DiveSAGA]

@@SummersideDiver I'm glad you enjoyed it! 👊

[@Truckdiver9]

Thank you for “diving” into the science of scuba!

[@DiveSAGA]

@@Truckdiver9 I see what you did there!

[@johnmontgomery2735]

Enjoying this series a lot. I think ill buy some merch. This weekend in hopes that it continues.

[@DiveSAGA]

Thank you! I'm doing my best to continue it alongside the other episodes!

[@josefdubisar5115]

I finally understood the purpose of nitrox and also the limits of O2 % in relation to depth and partial pressure. Very well explained.

[@DiveSAGA]

@@josefdubisar5115 I'm happy that it was informative! 👊

[@henrymaxfield]

Nice overview. One small addition is that high gas density and work of breathing leads to buildup of CO2, which is highly narcotic. This is another reason why helium mixes reduce narcosis.

[@DiveSAGA]

@@henrymaxfield indeed! Good addition!

[@kostasPAOK]

Great review and information on Gasses used..Thank you..This is a great series you started... I would love to try Trimix one day, after having of course the appropriate training ( I suppose its TEC diving courses that introduce you to trimix right?)... Dream target: Brittanic

[@DiveSAGA]

@@kostasPAOK yes you start with regular Tec training (usually using air or Nitrox and a bottom gas) and then from there train up to use Trimix. Thank you for the support! 👊

[@josephdracula7487]

👍😎🇵🇭🤿 Fascinating information about mixed gases in diving! Maybe in the future, I may delve into this. Your new videos on scuba science is great thank you.

[@DiveSAGA]

@@josephdracula7487 my pleasure! Thank you for the support 🙏

[@EricStott]

As i watched this, i wondered if you were going to mention argon. Very educational, i hasn't heard of some of the commercial breathing mixes before. Do ANY SCUBA computers on the market handle hydrogen mixtures?

[@DiveSAGA]

I don't think so. It's a good question actually how they account for that!

[@EricStott]

​@@DiveSAGAI've watched a video of one of the Thai Soccer rescuers, I think the Doctor (Harry?), who dives Hydrogen. It would be cool to see an interview with him.

[@EricStott]

​@@DiveSAGAmixing pure O₂ with Hydrogen seems a bit dangerous, even in an mCCR (O₂ sensors), an eCCR 'feels' even more dangerous.

[@DiveSAGA]

@EricStott I'll see what I can do 😅

[@391wombat]

👍👍

[@eduardoaguilar1550]

I know this cuban scuba diver, that used to work as an industrial diver. He told me about a time (like 5 years ago) when he was requested to check a part of the first optical fiber cable comming to Cuba. The part in question was 86m under water... he claims that he descended those 86 meters in around 7 minutes on regular air! Took some photos of the cable and started his ascent, which he says was around 3 hours (with a safeline and some other tanks on the way up) and that when he surfaced, was promptly taken to (the only) deco chamber all the way in Habana, and sat there for some more hours. I remember he asked me, "how much do you think they payed me for risking myself like that?... just my regular salary, around 9 USD". He moved here to México shortly after.

[@DiveSAGA]

@@eduardoaguilar1550 there are many stories about people diving deeper on air. Unfortunately anecdotal evidence is not really scientific. Just because something can sometimes be done with luck, doesn't prove it can be done reliably. Crazy story though, especially for that payout.

[@eduardoaguilar1550]

​@@DiveSAGA Oh no, I'm not suggesting that descending that much like that should be done at all! I wanted to share the story that his superiors made him descent that much on regular air risking his life. It really baffled me.

[@DiveSAGA]

@eduardoaguilar1550 sadly is still a very common occurrence!

[@TimTomson-l2t]

What is the computer at 6:24?

[@DiveSAGA]

That's a Scubapro G2 Tek

[@mirandahotspring4019]

What? No mention of crude neon? I feel like I've been cheated. 😇😇😇 But overall, good simple coverage.

[@DiveSAGA]

To be honest, I couldn't really find much concrete information about neon currently being used.

[@mirandahotspring4019]

@@DiveSAGA I was being sarcastic. Some work was done on it back in the 70s, and there is a little ongoing every now and again, but its pretty much never used, although there's been talk of using it in rebreathers for very deep commercial work. They generally use what is called crude neon, a mix of neon and helium.

[@psxtuneservice]

Hydrogen was used before Helium....on the beginning of scuba technology

[@DiveSAGA]

I know Helium has been around since the 1920's but I thought Hydrogen didn't really come into the picture until the 1940's or so.

[@391wombat]

👍👍