CPAPtalk.com

Mathurine wrote:I would think it is the flow of the air, if the air were to sit still in your throat it wouldn't work the same..?

Yeah, but my point is, for there to be a flow of air, there has to be a pressure differential. If the pressure of the air in your lungs is the same as the pressure at the mask, then there is no flow of air.

Thus, if you're in a hyperbaric chamber (I hope I'm spelling that right), the pressure in your nose/mouth is offset by the added pressure on your chest CLOSING your lungs, and therefore there's no net flow into your mouth. However if you enclose just your head in a pressure chamber, the pressure into your body is GREATER than the pressure pressing in on your rib cage, and thus, there is a pressure differential and a net flow.

So your answer would tend to argue for MY assumption that it's the pressure differential, and not merely something special about being under higher pressure that makes the throat stay open.

Liam, who's never sure how to spell "Chamber".

Not recommending this ...but....

I read a post on TAS quite some time ago where a guy that was an RT or paramedic took a hospital oxygen mask or anesthesia mask (can't remember the details) and modified it (punching exhaust holes, I think) to make himself a spiffy full face mask for use with cpap. He said it was more comfortable than any full face mask he had tried. Of course, the most important thing would be getting the proper exhaust to whisk the old carbon dioxide away and still receive the right treatment pressure. How you'd know if you'd fixed the exhaust right, I don't know.

Whether a homemade mask would confuse an autopap, I dunno either. Also, don't know how safe such a thing would be if power went off and you were breathing through a homemade mask that might not have the safety features built into the manufactured and FDA approved full face masks.

Still, I thought it was an interesting exercise in the lengths people go to, to find a mask they can tolerate.

Maybe there should be an "Exhaust box" for sale with the same "emerency pressure flap valve" that the masks have for when the power goes out??

something that goes between two sections of hose so you have the right amount of CO2 disspersion (adjustable) for using oddball masks

If somebody patents that I want my cut! you saw it here first! LOL

Has anyone tried the hans rudolf FF?

http://www.rudolphkc.com/

I;m not sure, but it can be purchased online here:

http://www.thecpapshop.com/product_page ... ductID=284

Has the added benefit for Jews and members of other religious persuassions that it keeps your head covered.

CPAP mask and yarmulke in one, now there's progress!

Liam, who's going to get himself in trouble making jests about religious beliefs.

What is your pressure setting? I did not realize until my pressure went up to 17, that the higher the pressure the harder it is to keep a mask, especially a full face mask from leaking. I have a mirage ff mask and like it. I have problems with leaks around the top of the nose when I lie on my side until I readjust the mask.

I wanted a fisher paykel ff mask, but even the small was too long for my face. This mask differs because it fits under the chin.

if i can put in my 2cents, i've recently tried the fischer/paykel flexifit full mask and it goes under your chin and really works great. believe me i've tried them all! hope this helps ,dogtired

Liam1965 wrote: Which actually begs another question that I've wondered for a while:

Is it just the pressure that helps with a CPAP, or is it (as would seem to make more sense) the pressure DIFFERENTIAL? In other words, would you magically stop snoring and sleep better if you slept in a pressurized chamber? Or does there have to be a greater pressure at mouth/nose than there is pressing in on your chest, so that there is a net pressure into your lungs?

Liam, who still has time to cancel his $10,000 bid for a hyperbaric chamber on E-bay.

With obstructive sleep apnea, we have tissues in our airways that are collapsing and blocking off the airway (whether it is tongue, palate, uvula, tonsils, etc.). The pressure from the CPAP acts as an air splint to hold open the airway, inflating that tissue "ceiling" like the air in the golf domes you see in cold weather cities. The pressure is not actually forcing air into your lungs. You're simply able to breathe because the airway is now held open.

Dave

Hey Im on a hans rudoplh and dislike it, maybe the mask. i have two masks, this is the one i use:


and i also have this one:


The top one is like alot of work, im 17 so its hard for me, but im getting used to it, my mom usually comes in and takes it off in the morning. But i personally dont like the top one. It makes me look terminally ill.