Excess Carbon dioxide in the mask?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
C02 Man

Re: Excess Carbon dioxide in the mask?

Post by C02 Man » Mon Jun 26, 2017 4:11 pm

I think C02 can be a problem. When I put too much water in the unit I noticed it bubble all the way back in the unit when I exhaled. The exhale is NOT getting out the valve, obviously, if it's doubling back through the tube even at high pressure. When I wear the mask I feel like I'm suffocating the minute I start to fall asleep and go into sleep apnea. Only one night did I use the mask over 6 hours. In fact, I used it that night over 9 hours. Coincidentally, that was the night my mask was loose and leaking a little air. That leaking seemed to be enough to get rid of the C02. I just tried using it loose on a nap, and once I did had no suffocation panic, and not so much the heavy breathing.

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LSAT
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Re: Excess Carbon dioxide in the mask?

Post by LSAT » Mon Jun 26, 2017 5:43 pm

C02 Man wrote:I think C02 can be a problem. When I put too much water in the unit I noticed it bubble all the way back in the unit when I exhaled. The exhale is NOT getting out the valve, obviously, if it's doubling back through the tube even at high pressure. When I wear the mask I feel like I'm suffocating the minute I start to fall asleep and go into sleep apnea. Only one night did I use the mask over 6 hours. In fact, I used it that night over 9 hours. Coincidentally, that was the night my mask was loose and leaking a little air. That leaking seemed to be enough to get rid of the C02. I just tried using it loose on a nap, and once I did had no suffocation panic, and not so much the heavy breathing.
I find it hard to believe that with the machine running...regardless of the pressure...that you can exhale against that pressure and make bubbles in your humidifier.

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Pugsy
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Re: Excess Carbon dioxide in the mask?

Post by Pugsy » Mon Jun 26, 2017 6:06 pm

LSAT wrote:I find it hard to believe that with the machine running...regardless of the pressure...that you can exhale against that pressure and make bubbles in your humidifier.
I was kinda wondering that myself. Must have Superman breath.

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ChicagoGranny
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Re: Excess Carbon dioxide in the mask?

Post by ChicagoGranny » Tue Jun 27, 2017 11:23 am

C02 Man wrote:The exhale is NOT getting out the valve
The anti-asphxyiation valve remains closed at all times when the machine is running. If it opens while the machine is running, you have something wrong with your setup. (The valve should only open when the CPAP is not pumping air.)

At all times, the vent ports should be clear and not blocked. The vent ports are there to allow excess CO2 to escape the loop. Blocking the vent ports is dangerous. Anytime the machine is running, there should be a significant amount of air flowing through the vent ports.

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Re: Excess Carbon dioxide in the mask?

Post by Miss Lily » Mon Sep 09, 2019 3:19 pm

Julie wrote:
Tue May 03, 2016 3:21 am
You need to see a different kind of doctor - one who will treat you for clinical paranoia, which you clearly have - the mask or your doctor or the DME are not your main problems, even if some adjustment might need to be done to your equipment, though I doubt very much the CO2 vent is defective, and I have nothing personal (obviously)to gain by saying so.
How dare you try and psychoanalyze one of our other members ... having a problem with Medicare procedures is a common factor along with people that do not adhere to professionalism and will put the almighty dollar before giving her a new machine ... you cannot be supportive with helpful information then just keep your ugly thoughts to yourself!!!

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Re: Excess Carbon dioxide in the mask?

Post by Miss Lily » Mon Sep 09, 2019 3:22 pm

whitethunder44 wrote:
Tue May 03, 2016 1:21 am
I am using a large sized Amara View mask, I just switched from medium on the 17th of April. I feel the holes are too small as well, but I am sure it is the company playing with the numbers to aggitate me.

Thank you, I know how to find out if CO2 is raised in my blood now. I see my PCP this Thursday.

since I have had problems since I began using the RESMED Machine. I use a company since Medicare is paying for the machine. I turned in to the medical board the company since the numbers kept changing, and the owner denied it. I now have had the machine stuck for I do not know how long on the lowest setting. I use a bipap which is two different settings. Mine goes from (V-AUTO) 8 over 13 to 15 over 10, and if I need more air, it will go over 15.
That is the way it is set up. On a regular basis, I see the machine stuck at the lowest number, I get gassy, sick to my stomach, bloating, and I cannot breathe due to the machine being stuck, (or they are messing with me which is more like what I think. I had an argument with the owner, brought the machine, they did things like make a large hole out of paper tape at the end of the hole, the first machine was defective. I do believe this one is defective or the owner is changing the numbers. My doc is going along with the company, I have not slept for ages, I used to have to use two fans blowing at me. The machine is supposed to re-set every 12 hours, I had over 17 hours on the machine last week. The owner has been doing this on purpose. If the medical board made her pull all of her paperwork and bi-pap levels, they will see the truth. Only with God can I do this.

I am so fed up with the system, I feel like calling the FBI if in fact my CO@ levels are raised. This is attempted murder to me. I do not let people take me for granted. Be safe
Please do not take Julie's comment to Heart ... some people like to talk just to hear themselves talk!!!

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ChicagoGranny
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Re: Excess Carbon dioxide in the mask?

Post by ChicagoGranny » Mon Sep 09, 2019 5:45 pm

Miss Lily wrote:
Mon Sep 09, 2019 3:19 pm
How dare you try and psychoanalyze one of our other members ... having a problem with Medicare procedures is a common factor along with people that do not adhere to professionalism and will put the almighty dollar before giving her a new machine ... you cannot be supportive with helpful information then just keep your ugly thoughts to yourself!!!
It's a good practice to check the dates on posts before trying to be helpful.

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zonker
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Re: Excess Carbon dioxide in the mask?

Post by zonker » Mon Sep 09, 2019 6:24 pm

ChicagoGranny wrote:
Mon Sep 09, 2019 5:45 pm
Miss Lily wrote:
Mon Sep 09, 2019 3:19 pm
How dare you try and psychoanalyze one of our other members ... having a problem with Medicare procedures is a common factor along with people that do not adhere to professionalism and will put the almighty dollar before giving her a new machine ... you cannot be supportive with helpful information then just keep your ugly thoughts to yourself!!!
It's a good practice to check the dates on posts before trying to be helpful.
concern troll is concerned.

created an account in june. posts 2x now.

boy have they missed a lot to be concerned with.
:lol: :lol:
people say i'm self absorbed.
but that's enough about them.
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ChicagoGranny
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Re: Excess Carbon dioxide in the mask?

Post by ChicagoGranny » Mon Sep 09, 2019 6:56 pm

zonker wrote:
Mon Sep 09, 2019 6:24 pm
boy have they missed a lot to be concerned with.
Things for me have been so busy lately that I only come here for the to-be-concerned-with.

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palerider
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Re: Excess Carbon dioxide in the mask?

Post by palerider » Mon Sep 09, 2019 10:51 pm

Miss Lily wrote:
Mon Sep 09, 2019 3:19 pm
How dare you try and psychoanalyze one of our other members ...
where do you get off with this "our members", in your FIRST POST?

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palerider
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Re: Excess Carbon dioxide in the mask?

Post by palerider » Mon Sep 09, 2019 10:52 pm

ChicagoGranny wrote:
Mon Sep 09, 2019 5:45 pm
Miss Lily wrote:
Mon Sep 09, 2019 3:19 pm
How dare you try and psychoanalyze one of our other members ... having a problem with Medicare procedures is a common factor along with people that do not adhere to professionalism and will put the almighty dollar before giving her a new machine ... you cannot be supportive with helpful information then just keep your ugly thoughts to yourself!!!
It's a good practice to check the dates on posts before trying to be helpful.
Nothing "helpful" there. :roll: Just another troll.

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Re: Excess Carbon dioxide in the mask? Airfit F20

Post by dbotas » Sat May 23, 2020 11:30 pm

I have been using a Resmed AirSense 10 with a Resmed Quattro Air Mask (the one with the forehead bridge) for 5 years very successfully.

Recently I changed to to new insurance co and they prescribed me a new AirSense 10 (identical machine and settings) and a new Resmed Airfit 20 mask.

First night I wore it it worked fine except that I quickly realized I was not getting enough oxygen (I have Reactive Airway condition so my lungs do not pickup oxygen as efficiently as normal lungs do... (although I am fit I can't really run because I don't get enough O2).

I soon noticed 0 air was escaping from the F20's 2 elbow siphon valves as always occurs with the Quattro Air. Once the machine powers up the two flaps on the sides of the F20's elbow slap shut and NEVER open again. 0 leakage.

I have had friends watch the flaps closely while holding a feather around the new pivot point etc. Absolutely 0 exit air with the F20.

I switched to the older machine with the new F20 mask and same problem. Quattro Air mask flap (it only has one located straight ahead) works perfectly with either machine and I get the oxygen rich sustaining breathing with it. BUT with either machine the AIRFIT F20 no CO2 is being siphoned away. 0 ... none ... nada!

The supplier sent me a new F20 mask... exact same problem. Both supplier and I talked with Resmed.

Resmed said they made the F20 to be more quiet for a companion sleeper by eliminating the air leakage at the elbow's circular pivot connection.

That's true but in my opinion they did not alter the controlling algorithm to account for the tighter seal so there is more pressure constantly exerted on the exhale flaps and they never open again to siphon out C02 while the machine is operating. No wonder the mask is SUPER quiet!

Either it is a algorithm pressure issue or alternatively the issue might be caused by the siphon air having to make a right angle to exit the F20's smaller two flaps where with the Quattro it exits straight ahead through one larger flap. (As a retired HVAC engineer I can tell u definitively that making air or a liquid make a right angle creates substantial back pressure resistance and cuts down on flow severely so that might be the issue rather than the machine's controlling algorithm

I suspect people with sleep apnea and normal lungs don't notice because they can better process what 02 there is much better than my lungs can.

But nobody should be sleeping with a CO2 buildup. Very unhealthy over time. Carbon dioxide intoxication or carbon dioxide poisoning, known, respectively, as hypercapnia can lead to drowsiness, elevated blood pressure, difficulty in thinking, muscle twitches and if untreated to respiratory failure.

The supplier substituted a new Resmed F10 which has the same older style elbow valve as the Quattro Air mask and it works fine. No C02 buildup. Just like the Quattro mask.

The F!0 works fine and that is what I am using now but I prefer the F20' silicon face seal ... its more comfortable and wrinkles my face less & the magnets are cool too.

Can anyone else comment on this F20 non opening flaps / CO2 issue or a possible solution?

Thanks

DB
Last edited by dbotas on Sun May 24, 2020 10:38 am, edited 1 time in total.

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Re: Excess Carbon dioxide in the mask?

Post by ChicagoGranny » Sun May 24, 2020 7:46 am

dbotas wrote:
Sat May 23, 2020 11:30 pm
Can anyone else comment on this F20 non opening flaps / CO2 issue or a possible solution?
You seem to be referring to the anti-asphyxia valves. These are designed to be closed when the CPAP circuit is operating. Their purpose is to allow the user to breathe when the machine is not running. They are useful during a power failure. Should the user get up during the night for any reason and keep the mask on, these valves will open to allow the user to breathe easily without CO2 buildup in the mask.

The mask has been heavily tested to clear CO2 effectively through the circular vents on the mask and the elbow vent. The circular vents are small and should be kept clean to allow the designed airflow.

What pressure(s) are you using?

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Re: Excess Carbon dioxide in the mask?

Post by Dog Slobber » Sun May 24, 2020 7:52 am

The "flaps" aren't there to vent CO2, they are present on full face mask in case of a power failure to breath through.

CO2 is vented through holes, and yes your F20 is still venting. ResMed did not remove the venting from the F20 they changed it. They developed what they refer to as a "QuietAir" venting. The venting is so diffused you can barely hear or feel it. But it is there.

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ChicagoGranny
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Re: Excess Carbon dioxide in the mask?

Post by ChicagoGranny » Sun May 24, 2020 8:00 am

Dog Slobber wrote:
Sun May 24, 2020 7:52 am
The "flaps" aren't there to vent CO2, they are present on full face mask in case of a power failure to breath through.
Also, they are effective for middle-of-the-night restroom trips with the mask kept in place.