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mask design
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bulldozer Offline

New Members

Posts: 1
Joined: Apr 2016

Machine: apap
Mask Type: Full face mask
Mask Make & Model: unsure
Humidifier: unsure
CPAP Pressure: 4=12
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location:

Post: #1
mask design
what is the purpose of the small flap between the air intake tube and the main face cavity of the mask. i have several masks and this flap varies. my best performing (lowest ahi results) is from a mask whose flap is a one way flap.....ie it seals on exhailing . it is an uncomfortable mask tho !
n.b. i am on apap 4-12 cm.
04-07-2016 04:16 PM
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palerider Offline

Preferred Members-

Posts: 440
Joined: Nov 2014

Machine: s9 vpap auto
Mask Type: Nasal pillows
Mask Make & Model: p10
Humidifier: none
CPAP Pressure: 18/13+
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: Dallas(ish)

Post: #2
RE: mask design
it's an anti-asphyxiation valve, it covers a large hole in the mask tube when the machine is running.

It is *always* closed, closing off the large hole, when the machine is running, otherwise you'd have a lot of air coming out there...

when the machine is *off* it opens that large hole to allow you to get fresh air so you don't asphyxiate.
04-07-2016 04:32 PM
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justMongo Offline

Monitors

Posts: 3,847
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: #3
RE: mask design
Welcome bulldozer.

On a Full Face Mask (FFM) that valve is the anti-asphyxia valve. Mine only flaps in the instant between maskup and blower on. Once my PAP is at pressure, the valve remains closed.

Yours may "flap" at low pressure since your min pressure is 4.

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.
04-07-2016 04:36 PM
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trish6hundred Offline

Advisory Members

Posts: 6,436
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

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

Sex: Female
Location: Missouri, USA

Post: #4
RE: mask design
Hi bulldozer,
WELCOME! to the forum.!
Much success to you with your CPAP therapy and hang in there for more responses to your post.

trish6hundred
04-07-2016 08:23 PM
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