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Is this normal for a nasal mask ?
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tommyngo Offline

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Machine: Resmed Airsense 10 Autoset
Mask Type: Nasal mask
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Post: #1
Question Is this normal for a nasal mask ?
I just bought a ResMed Mirage FX nasal mask after using a FFM for 2 weeks without good results ! After 3 nights with the nasal masks, my AHI averages about 2.5 ( compared to about 20 with the FFM) .

However, with the nasal mask, air comes out of my mouth each time my lips open . It is definitely expulsed from inside my mouth ( not leaking from the mask at all ) . Is this normal for nasal mask users ? Huh

How can you explain this air flow from the mouth when I am breathing through the nose ? Huh

Please comment . Thanks.
08-17-2015 10:42 AM
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me50 Offline

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Machine: resmed S9 VPAP Auto
Mask Type: Nasal mask
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Post: #2
RE: Is this normal for a nasal mask ?
What goes in must come out and I guess it comes out of your mouth but that isn't anything that a good chin strap won't help with. You probably didn't know it because you were using a FFM.
08-17-2015 11:34 AM
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quiescence at last Offline

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Machine: REMstar System One with Autoflex
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Other Comments: CMS-50F Plus oximeter /w SPO2 Assistant software. Avowed mouth-breather switching to nose-breathing

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Post: #3
RE: Is this normal for a nasal mask ?
In the case of FFM, the air does not rush out of the mouth like it is going to a party. That's because the air that presses into the nose, and into the mouth, is at the same pressure. No exit point, so no rush of air. When it is nasal mask only, the mouth represents an external leak point, so the air rushes out the hole.

QAL

Dedicated to QALity sleep.
You'll note I am listed as an Advisory Member. I am honored to be listed as such. See the fine print - Advisory Members as a group provide advice and suggestions to Apnea Board administrators and staff concerning Apnea Board operation and administrative policies. Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
08-17-2015 02:24 PM
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tommyngo Offline

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Posts: 34
Joined: Jul 2015

Machine: Resmed Airsense 10 Autoset
Mask Type: Nasal mask
Mask Make & Model: Resmed Mirage FX Nasal Mask
Humidifier: Included with machine
CPAP Pressure: 5 - 20 cm H2O Auto
CPAP Software: ResScan

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Sex: Male
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Post: #4
RE: Is this normal for a nasal mask ?
(08-17-2015 11:34 AM)me50 Wrote:  What goes in must come out and I guess it comes out of your mouth but that isn't anything that a good chin strap won't help with. You probably didn't know it because you were using a FFM.


Normally, I breathe in and out through the nose (waking period & under the masks ,i.e. nasal or FFM ) . If I close my mouth, it's OK . The minute my lips are open unintentionally, the air rushes out and wakes me up !

How do most people breathe under a nasal mask , I wonder ? Do they reathe in and out by the nose ? Or do they breathe in by nose and breath out by mouth ?
08-17-2015 03:08 PM
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trish6hundred Offline

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Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
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CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

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Post: #5
RE: Is this normal for a nasal mask ?
Hi tommyngo,
You might try a chinstrap and see if that helps you keep your mouth closed.
Hang in there for more responses to your post and much success to you with your CPAP therapy.

trish6hundred
08-17-2015 04:09 PM
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zonk Offline

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Location: Australia

Post: #6
RE: Is this normal for a nasal mask ?
Its called "chipmunk cheeks", some people have a trick up their sleeve, place their tongue at the roof of the mouth, act as door stopper
Prevent air escape through the mouth and goes down where should go

Others resort to disparate measures, tape their mouth shut, not recommending this method, can be dangerous in case power goes down
Unlike full face mask, nasal mask does not have a valve to open allow room air enter the mask
so you can breathe and not suffocate, in case of power failure
08-17-2015 04:51 PM
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zonk Offline

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Sex: Male
Location: Australia

Post: #7
RE: Is this normal for a nasal mask ?
(08-17-2015 03:08 PM)tommyngo Wrote:  How do most people breathe under a nasal mask , I wonder ? Do they reathe in and out by the nose ? Or do they breathe in by nose and breath out by mouth ?
With nasal mask or nasal pillows mask, you must breathe in and breathe out through your nose
Breathing out through your mouth is a no no, render the therapy ineffective
Full face mask, is different kettle of fish, nose and mouth are okay
08-17-2015 04:56 PM
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tommyngo Offline

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Posts: 34
Joined: Jul 2015

Machine: Resmed Airsense 10 Autoset
Mask Type: Nasal mask
Mask Make & Model: Resmed Mirage FX Nasal Mask
Humidifier: Included with machine
CPAP Pressure: 5 - 20 cm H2O Auto
CPAP Software: ResScan

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Sex: Male
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Post: #8
RE: Is this normal for a nasal mask ?
[quote='zonk' pid='126804' dateline='1439848612']

Thanks trish6hundred & Zonk and others ...

I might try a chin strap or tape my mouth ( with a hole in the middle of the tape ..) . I did tape my mouth when I used the FFM . It worked but it was bothersome, though ! Oh-jeez
08-17-2015 06:01 PM
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Ghost1958 Offline

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Machine: PRS1 Series Sixty Auto Aflex
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Other Comments: Moderate to Severe SA Obstructive. Rapid O2 desat off the machine.

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Post: #9
RE: Is this normal for a nasal mask ?
(08-17-2015 06:01 PM)tommyngo Wrote:  [quote='zonk' pid='126804' dateline='1439848612']

Thanks trish6hundred & Zonk and others ...

I might try a chin strap or tape my mouth ( with a hole in the middle of the tape ..) . I did tape my mouth when I used the FFM . It worked but it was bothersome, though ! Oh-jeez

Just get a good chin strap. They arent costly and last a long time. Im almost to the point i can do without one but been on nasal mask for a good while now.
If my tongue would stay up when i really go into deep sleep id be ok without one. But it wont lol
08-17-2015 11:00 PM
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Hanrahan Offline

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Machine: still testing
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Post: #10
RE: Is this normal for a nasal mask ?
I open my mouth listening for that rush to be sure that I am getting enough air flow before settling. I feel pillows have restricted flow and I am uncomfortable until pressure ramps up.

I find that with low pressures air rushing out the mouth is no problem because I am not a mouth breather although pressure > 10 tends to force it's way past my lips, noisily. My beginner advice is to go with FFM at high pressures but try to find a less obtrusive one at low pressures.
08-17-2015 11:40 PM
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