Was just filling out a CH survey and it asked if I use a demand valve.
Not sure what that is. How much different is that from a regulator and what are the benefits/ drawbacks?

It's like what scuba divers use. When you inhale it opens up and lets air out. I use one, it's an old paramedic style push button/demand regulator. It works better for me because of how I use my 02. I exhale completely, then draw in as deep a breath as I can hold, and hold it for up to 45 seconds, then exhale, draw a few short breaths and a deep one I hold again.

A standard flow regulator would waste 02 for me as it would continue to run while I'm holding my breath! Using my technique I can abort with as little as 3-400 pounds out of an E-tank.

Long explanation for a short question huh? ;)

Joe

Guiseppi wrote on Jan 11^th, 2009 at 3:19am:

It's like what scuba divers use. When you inhale it opens up and lets air out. I use one, it's an old paramedic style push button/demand regulator. It works better for me because of how I use my 02. I exhale completely, then draw in as deep a breath as I can hold, and hold it for up to 45 seconds, then exhale, draw a few short breaths and a deep one I hold again. A standard flow regulator would waste 02 for me as it would continue to run while I'm holding my breath! Using my technique I can abort with as little as 3-400 pounds out of an E-tank. Long explanation for a short question huh? ;) Joe

Not at all. In fact, quite perfect explanation, and actually answered more than just that one question. I had considered going to a scuba store to see how much a scuba mouthpiece would run, since it seems to not waste o2 on divers. The non-rebreather on my M tank is crap, and right now I just suck out of the tube on my portable tanks.

Now that I know it helps to conserve o2 and seems more effective, I'll have to look for one online.

Thanks Joe.  8-)

Carl,  There is a picture of it here.   Scroll down and it's on the right in the third grouping.  I got one last year as well as a 25 lpm regulator and the difference it has made in aborting..is amazing.

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Linda

Thanks Linda. I'm calling Praxair tomorrow to see if they have them and if not... will be off to the scuba store in St Louis early next month.

That thing looks mondo!!!!

Carl, I will have mine, with me, in St Louis.  You will be able to see it, and if you get hit, try it out for yourself!

Demand Valve Huffer, Chuck

Carl D wrote on Jan 11^th, 2009 at 2:29pm:

Thanks Linda. I'm calling Praxair tomorrow to see if they have them and if not... will be off to the scuba store in St Louis early next month. That thing looks mondo!!!!

Mondo?  Wasn't he the guy in Blazing Saddles?

 Potter