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Full Face Mask Leakage?
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BobF Offline

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Posts: 97
Joined: Aug 2012

Machine: ResMed Airsense 10
Mask Type: Full face mask
Mask Make & Model: Respironics Blue Gel Full Face Large
Humidifier: Built in
CPAP Pressure: 12.8
CPAP Software: ResScan

Other Comments:

Sex: Male
Location: So. CA.

Post: #1
Full Face Mask Leakage?
I am using a RedMed S9 Elite and a Respironics ComfortGel Blue Full Face Mask. My set pressure is 12 cm H20. I check my data with the ResMed software. I have noticed that my leakage is very low now compared to some old data. Can something be wrong with the S9 data system flow measurement system or the mask? The maximum allowable leakage rate for this mask is 24 L/min. My leakage rates are about 1-2 L/min. now. Thanks, Bob.
07-30-2013 06:00 PM
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RonWessels Offline

Preferred Members-2

Posts: 465
Joined: Jun 2013

Machine: REMstar Auto AFlex DS560TS
Mask Type: Nasal mask
Mask Make & Model: ComfortGel Blue
Humidifier: REMstar Heated Tube DS6T
CPAP Pressure: 11 - 20
CPAP Software: SleepyHead

Other Comments: CMS50F Pulse Oximeter

Sex: Male
Location: Ontario, Canada

Post: #2
RE: Full Face Mask Leakage?
Be careful if you compare the total leak rate (which includes the "intentional" leak caused by the mask vent) and the unintentional leak rate (which would ideally be zero).

That 1-2 L/min must be an unintentional leak, and that is pretty good. It looks like your mask is a good fit.
07-30-2013 06:36 PM
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BobF Offline

Preferred Members-2

Posts: 97
Joined: Aug 2012

Machine: ResMed Airsense 10
Mask Type: Full face mask
Mask Make & Model: Respironics Blue Gel Full Face Large
Humidifier: Built in
CPAP Pressure: 12.8
CPAP Software: ResScan

Other Comments:

Sex: Male
Location: So. CA.

Post: #3
RE: Full Face Mask Leakage?
(07-30-2013 06:36 PM)RonWessels Wrote:  Be careful if you compare the total leak rate (which includes the "intentional" leak caused by the mask vent) and the unintentional leak rate (which would ideally be zero).

That 1-2 L/min must be an unintentional leak, and that is pretty good. It looks like your mask is a good fit.

The ResMed software reports leakage as median, 95th percentile and maximum in L/min. My minimums are 0 and my 95th percentiles averarge around 1-2 L/Min. Even when I get up to use the rest room my maximum is usually around 15-18 L/min as reported. There is a maximum line at 24 L/min. Can there be a problem with the mask vent or the flow measurement system in my ResMed S9?. I can feel outgoing flow from the mask vent all night. Bob.
(This post was last modified: 07-30-2013 07:34 PM by BobF.)
07-30-2013 07:32 PM
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Sleepster Offline
Wiki Editor
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Posts: 4,995
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #4
RE: Full Face Mask Leakage?
As I understand it, Resmed machines report only the unintentional leak rate. So if you have a leak rate of zero, that means you are leaking only what's supposed to be leaking through the exhalation port.

Sleepster
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07-30-2013 08:56 PM
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DreamDiver Offline

Preferred Members-2

Posts: 77
Joined: Jul 2013

Machine: ResMed S9 Autoset
Mask Type: Full face mask
Mask Make & Model: Quattro FX Full Face
Humidifier: ResMed S9 H5i
CPAP Pressure: 10.4 | 11.8
CPAP Software: ResScan SleepyHead EncoreBasic EncorePro

Other Comments:

Sex: Male
Location: Georgia

Post: #5
RE: Full Face Mask Leakage?
RonWessels and Sleepster are correct. S9 only reports the large/unintentional leakage - not total or expected leakage. It helps to make sure you have the correct hose type and mask type dialed into your admin settings directly on the S9. A leak rate of 1 - 2 l/min is pretty decent.

Do you turn off your machine before take off your mask to go to the bathroom?

Sleep well.

dreamdiver.org
(This post was last modified: 07-30-2013 09:31 PM by DreamDiver.)
07-30-2013 09:30 PM
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Mark Risley Offline

Preferred Members

Posts: 44
Joined: Jul 2013

Machine: Resmed S9 Elite
Mask Type: Nasal mask
Mask Make & Model: Resmed FX Mirage
Humidifier: Resmed H5i
CPAP Pressure: 14
CPAP Software: ResScan Performance Manager

Other Comments: I have worked for 10 years to get 100% compliance.

Sex: Male
Location: USA

Post: #6
RE: Full Face Mask Leakage?
Sounds like everything is ok and you have foundvthevperfect mask!
07-30-2013 09:50 PM
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BobF Offline

Preferred Members-2

Posts: 97
Joined: Aug 2012

Machine: ResMed Airsense 10
Mask Type: Full face mask
Mask Make & Model: Respironics Blue Gel Full Face Large
Humidifier: Built in
CPAP Pressure: 12.8
CPAP Software: ResScan

Other Comments:

Sex: Male
Location: So. CA.

Post: #7
RE: Full Face Mask Leakage?
(07-30-2013 09:30 PM)DreamDiver Wrote:  RonWessels and Sleepster are correct. S9 only reports the large/unintentional leakage - not total or expected leakage. It helps to make sure you have the correct hose type and mask type dialed into your admin settings directly on the S9. A leak rate of 1 - 2 l/min is pretty decent.

Do you turn off your machine before take off your mask to go to the bathroom?

Sleep well.
Hi. No I don't remove the mask. The bathroom is close enough. I have a ten foot hose just for that reason. Bob.


(07-30-2013 09:50 PM)Mark Risley Wrote:  Sounds like everything is ok and you have foundvthevperfect mask!

HI. OK. Thanks, Bob.
(This post was last modified: 07-30-2013 10:05 PM by BobF.)
07-30-2013 10:04 PM
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zonk Offline

Advisory Members

Posts: 7,908
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #8
RE: Full Face Mask Leakage?
ResMed machines are the only machines report unintentional leak rate (mask plus mouth leak), you need to select the right mask type that you,re using. AS you,re using Respironcis full face mask which have slight different vents leak (intentional leak) than ResMed masks, the leak rate reported might not be 100% accurate but yours numbers are excellent to worry about a liter here and there Well-done
07-30-2013 10:14 PM
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BobF Offline

Preferred Members-2

Posts: 97
Joined: Aug 2012

Machine: ResMed Airsense 10
Mask Type: Full face mask
Mask Make & Model: Respironics Blue Gel Full Face Large
Humidifier: Built in
CPAP Pressure: 12.8
CPAP Software: ResScan

Other Comments:

Sex: Male
Location: So. CA.

Post: #9
RE: Full Face Mask Leakage?
Hi Zonk.OK Thanks, Bob.
07-30-2013 10:25 PM
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Mark Risley Offline

Preferred Members

Posts: 44
Joined: Jul 2013

Machine: Resmed S9 Elite
Mask Type: Nasal mask
Mask Make & Model: Resmed FX Mirage
Humidifier: Resmed H5i
CPAP Pressure: 14
CPAP Software: ResScan Performance Manager

Other Comments: I have worked for 10 years to get 100% compliance.

Sex: Male
Location: USA

Post: #10
RE: Full Face Mask Leakage?
I don't want to continually harp on this, but why so much concern about data? Learn to get comfortable with your unit. Learn which mask is best for you. Learn how to handle leakage issues. Learn to get 8 hours of sleep a nigh. Then when you can do all that, you will have time to tweak these data and software issues and improve even more. Data issues are not the main concern when you can't even get comfortable with your new therapy.
07-30-2013 10:52 PM
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