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Wrong Mask setting
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justMongo Offline

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Posts: 3,854
Joined: Sep 2013

Machine: ResMed VPAP Auto (S9)
Mask Type: Full face mask
Mask Make & Model: ResMed Mirage Quattro
Humidifier: ResMed H5i
CPAP Pressure: 18 IPAPmax - 11 EPAPmin, PS=5
CPAP Software: Other Software

Other Comments: μολὼν λαβέ

Sex: Male
Location: Калифорния

Post: #1
Question Wrong Mask setting
When I started CPAP with my present machine 4 years ago, I was supplied with the Mirage Quattro mask. But, I had a nasal pillow mask from 2004 that I wanted to try.

The tech told me which mask settings to use on my ResMed S8 - VPAP-S. I recall she wrote them down on a post-it note.

I quickly found the FF Mirage Quattro mask to be the better mask.

Yesterday evening, I found the machine set to SWIFT. It should have been set to MIR FULL. I have no idea how long it's been set wrong -- perhaps 4 years.

I wonder what impact that's had on my sleep quality?
Huhsign

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
09-13-2013 06:52 AM
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big_dave Online

Advisory Members

Posts: 411
Joined: Apr 2012

Machine: PR System One DS560
Mask Type: Nasal pillows
Mask Make & Model: F&P Pilairo Q or ResMed Mirage Activa
Humidifier: PR System One
CPAP Pressure: 14 - 20
CPAP Software: SleepyHead

Other Comments: Former ResMed S8 Autoset II user

Sex: Male
Location: Eugene, Oregon

Post: #2
RE: Wrong Mask setting
I have four masks of all different types (nasal, full face, pillows, fabric). I don't bother switching the mask type when I switch masks, and I really don't notice a difference.
09-13-2013 11:51 AM
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PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,068
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #3
RE: Wrong Mask setting
In the long run, it doesn't make that much of a difference. It helps track leak rate. I doubt it does much in terms of treatment.

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


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INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
09-13-2013 12:03 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: #4
RE: Wrong Mask setting
Probably next to no effect.

There are two reasons the CPAP machine wants to know the type of mask being use. The first (for ResMed machines) is so that it can figure out the intentional leak rate (ie. airflow through the mask vent) and thereby calculate the unintentional leak rate. The other reason (at least for PRS1 machines, but I'm sure ResMed has something similar) is so that the machine can compensate for the flow resistance from the mask and thereby provide the proper pressure in your airway. But that compensation is quite small, relatively speaking.
09-15-2013 06:30 PM
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PsychoMike Offline

Advisory Members

Posts: 551
Joined: Aug 2013

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Varies with mood, ResMed F10 is my primary
Humidifier: ResMed H5i
CPAP Pressure: 12-17
CPAP Software: SleepyHead

Other Comments: asthma, cyclist upgraditis, just a little crazy (honest :D )

Sex: Male
Location: Alberta, Canada

Post: #5
RE: Wrong Mask setting
Yup...minor impact, if any. The mask type is more for leak tracking and mask volume (i.e. for deciding if it is an open or obstructed airway apnea event). Should be minimal impact to your treatment, but might impact some of how it interprets the data it is recording.
09-16-2013 11:37 AM
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