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When are leaks too many?
#1
When are leaks too many?
I have recently been experimenting with different masks (AirFit F30i, N30i, and P30i) and I notice that, even with mouth taping, there are more leaks with the nasal masks.  So, I was wondering, how much leaking is too much?  I feel just as rested with any of the three, though I spend more time waking up and adjusting the nasal and full face masks than the pillows.  My AHI - around 2-3 with mostly centrals - is similar too.  And I do not desaturate with the leaks.  Thank you for your thoughts!


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#2
RE: When are leaks too many?
Usually, it is considered that leaks above 24 are problematic and compromise your therapy.

But if a smaller leak annoys you up to waking you up, than it is probably too much.
If one blows right in your eyes and you end up with dried eyes, again it will be problematic no matter how big the leak is.
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#3
RE: When are leaks too many?
Hi Fish - two things
1) Please post your daily results page. That will get you better answers.
2) The experts will appreciate keeping your stuff all in one thread. That avoids wasting their time looking through multiple threads to get your entire picture.
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#4
RE: When are leaks too many?
Ok, It has been awhile since I had a full night with the F30i, so I wore it last night for the full face mask (I played around with a couple set ups at the beginning of the night, so please ignore the short times at the start).  The second is a full night with the P30i with relatively few leaks.  If you look at the overview it is pretty obvious when I started using the nasal masks more consistently (8/25).

A summary of my mask journey:  Started with a Airfit F20 as I knew a was a mouth breather.  I felt amazingly better by the second night, but it bothered my nasal bridge and I could not get my reading glasses over it for late night texts.  So I switched to the F30i, which leaks more but is also more comfortable for me (strap covers are the key, BTW). When I was diagnosed I also got a mandibular advancement device in the hope it could substitute for the CPAP off the grid.  It doesn't (measured by O2 saturation), but it turns me from an obligate mouth breather to being able to use a nasal mask, hence my more recent experimentation with nasal masks. By the time I have a MAD in place and my lips taped, it is a toss-up whether the FF or either of the nasals is the the more comfortable.  

A summary of me: 61 y/o F with normal BMI and family history of apnea, living at 7000 ft.

Thank you!


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#5
RE: When are leaks too many?
This would be an example of a leaky night:


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#6
RE: When are leaks too many?
In first diagram large leaks were a little amount. And second diagram not very long time near 24 litres / minute. Quite good situation.
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#7
RE: When are leaks too many?
Thank you, Unidee, for your insight.  It is good to known the leaks are not too excessive.  You are correct, Heracles, the limiting factor is really how noisy the leak is and whether it wakes me up.  Unfortunately, the nasal masks are more of an issue there.  See, last night - the first half is a P30i and the second is an F30i.  All those sudden drops with the P are me waking up and closing my mouth, whether or not they are "significant" leaks.


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