Hissing from mask?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Hissing from mask?

Post by ColoZZZ » Fri Dec 15, 2006 10:47 pm

I've currently got a RESmed Ultra Mirage FF mask and a Remstar plus w/ C-Flex CPAP macine (w/ only about 65 hrs total run time on it). I would swear that there's a hissing coming from the CPAP machine but my wife says it just quietly hums along. Do y'all with the Mirage masks have a steady hissing from the connections?

Any recommendations on how to make it quieter? I know that if the hissing is coming from my mask it'd be easy to think it was coming from anything else too, but it just SEEMS like its coming from the machine.



To butcher John Prine's "Dear Abby"

Dear 'PAPTalk Dear 'PAPTalk
Y'all won't believe this
But my Remstar makes noises
That sound like a Hiss
My Dear Wife she tells me
Its all at my head
But my Remstar, it tells me
To write y'all instead

Siiiiiiiiiiigned.... New Papper

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Post by Snoredog » Sat Dec 16, 2006 1:32 am

Nope, my UMFF only sounded like a high pitched (tenor) bull frog when you breathed in and out.

You might check that Horseshoe shaped exhaust port at the bridge of your nose, some have reported it was installed inside out. If you look closely at that piece you will see the holes are tapered with the smaller end outward.

If you have a classic with the humidifier you might check the silicone coupler between the machine and the tank, for that one, you slide the tank off the machine, insert index finger inside metal ring and pull the coupler out a bit, then slide the tank back on using only it to push the silicone ring back in the machine.

Got any cats? they lke to claw your hose and put holes in it.

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Post by Wulfman » Sat Dec 16, 2006 10:14 am

Snoredog pretty much covered the leak locations. One other place I've heard of that leaks is the hose swivel adapter/connector in the front of the mask. Usually from people who have taken their mask apart and didn't get it back together correctly. SO, my advice on that one is DON'T TAKE THE UMFF APART to clean it! I've never taken mine apart and don't plan to.

Best wishes,


(4) REMstar Autos w/C-Flex & (6) REMstar Pro 2 CPAPs w/C-Flex - Pressure Setting = 12 cm.
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
User since 05/14/05

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Post by michael_schaap » Sat Dec 16, 2006 9:48 pm

Just tell her to take her hearing aids out for the night.... you generally dont say much at 2am worth much anyways right... oh..... she might not be deaf.... gotcha