Air surging in tubing during Dreamstation 2 therapy
Air surging in tubing during Dreamstation 2 therapy
Apologies if this is addressed elsewhere ... I have a (replacement) Dreamstation 2 with an HT15 heated hose and a Quattro FX FF mask. I accidentally overfilled the humidifier reservoir, which caused the machine to turn off. I separated the humidifier, drained it, and drained the water that had infiltrated the device, letting it dry for a day. (Fortunately I have a back-up machine). Now, when I start the machine with hose and mask attached, there is strong surge of air on both my inhale and my exhale. I couldn't possibly sleep with this surging, and am wondering if anyone else has encountered this, and what I might do to address it. Thanks!
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Machine: DreamStation 2 Auto CPAP Advanced with Humidifier |
Mask: Quattro™ FX Full Face CPAP Mask with Headgear |
Humidifier: DreamStation Heated Humidifier |
Additional Comments: HT15 heated tubing |
- ChicagoGranny
- Posts: 14990
- Joined: Sun Jan 29, 2012 1:43 pm
- Location: USA
Re: Air surging in tubing during Dreamstation 2 therapy
It's not clear to me what you mean by "surge".
In any case, have you checked all the machine settings, including exhalation relief, to see if they are the same as before the water incident?
As you know, water can really screw up electronics.

In any case, have you checked all the machine settings, including exhalation relief, to see if they are the same as before the water incident?
As you know, water can really screw up electronics.
Doesn't matter. Members answer the same questions hundreds of times.

"It's not the number of breaths we take, it's the number of moments that take our breath away."
Cuando cuentes cuentos, cuenta cuántas cuentos cuentas.
Cuando cuentes cuentos, cuenta cuántas cuentos cuentas.
Re: Air surging in tubing during Dreamstation 2 therapy
If you simply let it set for the day dry out, it's possible there still may be some moisture within the unit that is present. I'm guessing there is some kind of air pressure/flow sensor somewhere in the air path in the machine that got wet and doesn't respond properly to your breathing. As long as the machine seems to run OK with just the hose connected (no mask), empty the water tub, turn off the humidifier, and just let it run for several hours and maybe with some luck dry room air flowing through it may dry the internals sufficiently so it returns to functioning normally. Having the water tub and hose connected while doing this will muffle the noise versus running the machine without the water tub in place. Hopefully this helps.
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Machine: DreamStation 2 Auto CPAP Advanced with Humidifier |
Mask: Fisher & Paykel Vitera Full Face Mask with Headgear (S, M, or L Cushion) |
Additional Comments: Resmed AirSense 10 Auto with Humidifier |