Mask breathing

  • What's a Solie mask?


    I misspelled it. I use the silicone one, I glue a 1/8 '' thick wet suit foam wrap a round visor to the plastic frame
    to keep out light. You don't want one Dan... you'll look like your diving on Magnum PI.:@:D:D:D
    Don

  • On the contrary, I like the retro look, stainless steel buckles and all. But the clear silicone is a no no.

    what i dont get is wouldnt any "air" in the mask jsut be exhaled CO2

    I've thought of this myself. I believe exhaled air has a higher percentage of CO2 but it's still possible to extract some oxygen from it. Just a guess, I don't know how it works, only that it works. I've also considered that it's all just psychological, but like I said the difference is significant.

  • when you descend some air is needed to fill the mask , the problem here is that some people as they ascend let the air escape instead of breathing it back in , which gives you a couple seconds more. now the deeper you go ,, the more air is used into the mask , and as you come up the less you'll have in the lungs if you don't ......recicle.

  • Why do you guys think it's high in Co2. Wouldn't most of it come from air way instead of lungs???

  • I think that it's more a "feeling" than anything else. It pushes more air in or down. I was taught to do this thing that you squeeze your stomach while simultaneously humming. It brings air up into your mouth and then you instantaneously push it back down.Bull frog type of deal. You do this over and over a few times. This in-out motion of air prolongs that "I need to breath" sensation. I think the mask thing is similar.
    Also, we never truly use 100% of the oxygen available to us in air. air is 20% oxygen of which we exhale 14-16%. That is why CPR works.

    Edited once, last by Toledo ().

  • I tried the mask breathing the last time out and it works, nothing drastic but enough to feel a little less dicomfort.


    Maybe its a combination of this and that your diving has improved significantly:)

  • There are more tricks, but i'm going to keep them tucked deep under my sleeve! ;)

  • There are more tricks, but i'm going to keep them tucked deep under my sleeve! ;)

    There's a chance you're joking and there's a chance you're serious. If there are other ways to improve breath hold I'll get there on my own when the time is right, just like I did with the mask breathing, so no big deal. But in my book saying that is not cool. What, you want us to know that you're better? OK greek you're a stud :rolleyes1:

  • Dan, I had a very close friend die because he was using a trick he thought he was safe with.
    We all have personal limits, What might work for me may kill someone else. I will post my friend story later this
    week in a separate thread in Safety.
    Cheers, Don

    "Great mother ocean brought forth all life, it is my eternal home'' Don Berry from Blue Water Hunters.


    Spearfishing Store the freediving and spearfishing equipment specialists.

  • There's a chance you're joking and there's a chance you're serious. If there are other ways to improve breath hold I'll get there on my own when the time is right, just like I did with the mask breathing, so no big deal. But in my book saying that is not cool. What, you want us to know that you're better? OK greek you're a stud :rolleyes1:


    It was a joke Dan. Relax. :laughing3:

  • Also, we never truly use 100% of the oxygen available to us in air. air is 20% oxygen of which we exhale 14-16%.


    21% O2 of only which 13% makes it to your alveoli of which only 8% max can be used in a perfect lung giving you your %14-16 expiration when breathing. Due to various reasons. Apnea you are holding that 21% and pressure exchanges are depleting it.


    Blood has a min of %5 O2 coming in, you work on that 21% reserve with your oxygen consumption rate until it gets close to %5 then your system isn't receiving anymore O2 or working at all for that matter.


    Your body uses 1/4 of the available O2 every minute resting, we're pretty relaxed but exerting ourselves on the way down. The air in the mask is put there pretty early in the dive, plus original volume had 21% already in it, so it's close to 21%.


    How much air?


    Ideal Gas Law --> Pressure*Volume=constant


    2 mask fulls at 33fsw
    3 masks at 66fsw
    4 masks at 99fsw
    5 masks at 132fsw


    Which is why a low volume mask is good for the way down, but not so good on the way up if you are going depend on that air.

    Davie Peguero

  • It was a joke Dan. Relax.

    Which exactly was the funny part? Do you know of other techniques? Then the joke was that you're not going to "reveal" them to us. In such a case ha ha and I'm waiting to hear what these techniques are.


    Or the joke was that that you pretended to know other techniques while you really don't? In this case you're a real clown.

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