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[CPAP] Exhaust port noise
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Rick1257 Offline

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Posts: 2
Joined: Apr 2015

Machine: unsure
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage Activa LT
Humidifier: Unsure
CPAP Pressure: Unsure
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #1
Question Exhaust port noise
I am using an older model CPAP machine that does not record any info. I use the ResMed Activa LT nasal pillow mask. Recently, I have had trouble with whistling from the exhaust port. I rub my finger over the port and it stops but returns in a few seconds/minutes. It is impossible to sleep with this whistling. Anyone have ideas or solutions?
04-22-2015 07:56 AM
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Sleepster Offline
Wiki Editor
Moderators

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: #2
RE: Exhaust port noise
I have the same experience with my Simplus. I think there's water collecting on the port holes and the rubbing removes it. So, do something to reduce the moisture in your hose. Turn the humidifier down and/or insulate the hose. Get a heated hose if that's an option (doubtful since you have an older machine).

Sleepster
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04-22-2015 08:01 AM
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Rick1257 Offline

New Members

Posts: 2
Joined: Apr 2015

Machine: unsure
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage Activa LT
Humidifier: Unsure
CPAP Pressure: Unsure
CPAP Software: Not using software

Other Comments:

Sex: Male
Location:

Post: #3
RE: Exhaust port noise
Thanks, I will try turning the humidifier down.
04-22-2015 08:12 AM
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trish6hundred Offline

Advisory Members

Posts: 6,450
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: Exhaust port noise
Hi Rick1257,
WELCOME! to the forum.!
Which machine do you have?
Much success to you with your CPAP therapy.

trish6hundred
04-22-2015 09:13 AM
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PaytonA Offline
Wiki Editor
Monitors

Posts: 3,014
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #5
RE: Exhaust port noise
One of the other forum members a while back had the same vent whistling problem. He sectioned some of the holes and found that the diameter inside the plastic was irregular. I had some masks that did the same and I am pretty sure that was the cause.

I am aslo pretty sure that the round vent holes in the mask are formed in the mold when the mask is cast. If mold venting becomes inadequate or the small pins that form the holes are not kept adequately cleaned off this will happen.

I think the options are what Sleepster mentioned or demanding a replacement mask due to a manufacturing defect.

Best Regards,

PaytonA
04-22-2015 01:57 PM
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quiescence at last Offline

Advisory Members

Posts: 753
Joined: Nov 2014

Machine: REMstar System One with Autoflex
Mask Type: Full face mask
Mask Make & Model: Quattro AirFit F10
Humidifier: yes typical setting = 4
CPAP Pressure: 5-13 Autotritrating CPAP
CPAP Software: SleepyHead EncoreBasic

Other Comments: CMS-50F Plus oximeter /w SPO2 Assistant software. Avowed mouth-breather switching to nose-breathing

Sex: Male
Location: US

Post: #6
RE: Exhaust port noise
find the hole that is offending and stick a toothpick stopper in it. is it only one or a lot of them? loss of one hole won't hurt. at least if you find the hole you can shove a safety pin down it, perhaps widening it just a bit.

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.
04-27-2015 08:11 PM
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