Rainout Without Humidifier

I have a Resmed S9 Autoset. I have been struggling with rainout. I decided to forgo the humidifier all together and I still get rain out. My bedroom temperature is 69F, I use a hose cover, the machine is below my head, nasal mask is new, and I use a heated coil when using the humidifier. Can someone please explain what I can do to correct this issue?

Looking back at your previous posts it appears that you have tried almost everything...I'm stumped.

Is the moisture in the hose or the nasal pillows? Sometimes our own breath can condense in the pillows. PadaCheek does make a barrel cozy that might help this. http://padacheek.com/PACSwiftII_Barrel_cozy.html
When I first started, until my nose and humidifier cooperated together, I would wake up at night with a lot of sinus drainage in my pillows. If that might be your case, try different humidity settings.

OkyDoky wrote:Is the moisture in the hose or the nasal pillows? Sometimes our own breath can condense in the pillows. PadaCheek does make a barrel cozy that might help this. http://padacheek.com/PACSwiftII_Barrel_cozy.html
When I first started, until my nose and humidifier cooperated together, I would wake up at night with a lot of sinus drainage in my pillows. If that might be your case, try different humidity settings.

He said he is not using his humidifier and he does have a hose cover.

Simple, warm the room air, or use a mask that doesn't have a section that cools down too low. Use the software to monitor your leak rate and data. You may need a FF mask with a lower leak rate. Mainly raise room air temp.

I keep my bedroom under 65 degrees, use a ComfortGel nasal mask, and ComfortGel FF mask, HH at all, no rain out. Jim

LSAT wrote:

OkyDoky wrote:Is the moisture in the hose or the nasal pillows? Sometimes our own breath can condense in the pillows. PadaCheek does make a barrel cozy that might help this. http://padacheek.com/PACSwiftII_Barrel_cozy.html
When I first started, until my nose and humidifier cooperated together, I would wake up at night with a lot of sinus drainage in my pillows. If that might be your case, try different humidity settings.

He said he is not using his humidifier and he does have a hose cover.

I missed not using the humidifier but the barrel cozy would be a separate cover over the pillows area that might help for expiration moisture.

If you have the heated hose, might try warming it up some along with the cover...just a thought

Since you're not even using a humidifier, the usual suspect is eliminated.

You said that you have the CPAP lower than your head. However, the moisture has no tank to drain to and potentially drains directly into the blower motor. Therefore, you might want to attach the tank even if you leave it at zero (or "off") and put no water.

As far as you problem, the thing that comes to mind is a runny nose. You might want to see an ENT doctor (if your sell doc is not an ENT) to address that.

ntb0111 wrote:I have a Resmed S9 Autoset. I have been struggling with rainout. I decided to forgo the humidifier all together and I still get rain out. My bedroom temperature is 69F, I use a hose cover, the machine is below my head, nasal mask is new, and I use a heated coil when using the humidifier. Can someone please explain what I can do to correct this issue?

Where do you live?
Is the area you live (and particularly your bedroom) high in relative humidity?
"Rainout" is simple physics........warm water vapor (or moisture in some form) cools and becomes liquid.
Theoretically, a person's own breath could also be the source. At least there have been other cases similar to yours.
Once you get the source figured out, you may be able to solve your problem.

One thing you might try is to route the hose under the covers (as near to the machine as possible) and next to your body to help warm it up.


Den

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Looking at the user manual for your mask, there appears to be a length of hose from the mask that then connects to the main heated hose from your cpap machine. I suspect that short hose is related to your rainout issue. It isn't part of the heat system and is exposed to room air. Try getting some fleece fabric and making a short hose cover to insulate it and see if that improves the situation.

Even though the diffuser is in the elbow that attaches directly to the mask, some of your exhaled breath may make it a short way down the tube. Your breath is likely at about 100% relative humidity and can cause condensation on surfaces that are at room temperature - 69 der. F.

If you use a hose hanger like I do, then the swivel at the mask will have the tube running more or less vertical and any condensation will run back into the mask even if the machine is below you.

I "get" where you're coming from. I have same issue. I have drained the tank, run humidity at 0, insulated the hoses, lowered the machine to a foot above the floor and I get woken up all night with a wet nose. I have raised the room temp with a space heater to about 72. I have run out of ideas

I have had rainout happen right in the mask. The air you are breathing out is warm and moist, if the surface of the mask is cool, you'll get condensation right there, in it. I have tried a couple nasal pillow masks which did this and I could not get them to stop. It is really unpleasant! In one case, I couldn't get a good seal and the pillows were always leaking a little and I felt like this kept them cooled off. In the other case there was just too much air movement in the mask design, it made my nose cold as well as causing the rainout. I'm not sure what mask you are using but I would suggest trying a different mask and see if that helps. I found the airfit p10 is really good, in my case, ymmv.

I have a hose cover on my main hose and also on the one that goes from my mask to the main hose. They are really easy to make out of a length of polar fleece, folded in half and sewn along one edge, then just slip the hose into it.

Tickedoffatcpap and sewsleepy. you don't state if you have a heated hose. A big help with rainout. And Padacheek makes barrel cozies that help with the condensation in the nasal pillows from exhaled air.

What is your room humidity?

Ok, I tried something new and it worked! I put a tissue into the mask forming a barrier between my nose and the mask. It did not get damp as you might think but instead kept the moist air from directly touching the mask - no Rainout!