If you have the heated hose on the PRS1 it has a sensor in the end of the hose at the mask end that measures the humidity to the mask, or that short stretch of nasal pillow hose.
Ive run the PRS1 mode, wide open at 5, heated hose off, on my PRS1 Auto Aflex with a bedroom temp down into the 50s when the fire dies down at night with no moisture in the hose or mask.
With the heated hose on setting of 3 humidity and 1 hose temp no moisture either.
Im betting the moisture is coming from you, not the machine.
Moisture from breath (which is my original theory) is far too easy to happen in nasal pillows, if that is what the OP is using. Especially in a cold room.
Apnea Board Moderator
Breathe deeply and count to zen.
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Thanks for all the advice and comments. I'm 6'3", too tall to pull covers up over head without untucking them at feet. I've tried to keep the hose under the covers, and that works but leads to wrestling with the hose when rolling over. I'm also using a space heater in the bedroom to keep it from getting too cold. I suspect the best remedy is to get a heated hose, but Apria seems opposed to that and I suspect I'll have to get my doctor to tell them I must have the heated hose. I don't have nasal pillows. I've had rainout problems before, and Apria's response was limited to help with changing settings on the machine -- not a word about heated hoses as a remedy from Apria.