Breath too warm when exhaling

[Stevie1under]

Hi there,
My pal has a Resmed A10, full face mask and he complains that the air in his mask is too warm when he exhales. This causes him to remove the mask usually after 4ish hours. He doesn't use a heated tube at this point. Does anyone have experience with this issue or anyone with with thoughts?

[Sleeprider]

The flow rates and venting in a FFM are relatively high, but it's still an enclosed environment. If your friend can't use nasal pillows, about the only way to reduce the sense of heat and moisture from exhaled breath may be mask liners, a different mask with higher vent rate or fabric shell, or lower humidity settings. A heated tube does not warm the air much if at all; it can only prevent the humid warm air from the humidifier from contacting a cold surface and condensing.

[pholynyk]

The nasal passages and the lungs do a very good job of warming and humidifying the air we breathe, so it is natural that it is warm when we exhale it. I have noticed this when I use my Amara View sort-of-full-face mask, and less so when I use my Wisp nasal mask. The effect is more noticeable when my room is colder, and sometimes the moisture condenses on the inside of the mask - this does get annoying if it drips onto my face.
I suspect the only cure is to use nasal pillows or the heated tubing so that the differential is less between inhale and exhale.

[Stevie1under]

Thanks for the quick replies, I'll pass along these ideas.

[richb]

Hi Stevie1under. Welcome to the Forum. I think I had an experience similar to your friends. My hose temperature was originally set on Auto and I think that went to 84 degrees F. I felt like my nasal mask was just too hot. I set the Temp to Manual and lowered the temp to 73 degrees F and the problem was solved. I keep my room as low as 63 degrees F at night. The 73 degree hose still prevents rain outs. I hope this helps.

Rich

[Stevie1under]

Thanks Rich, we'll give it a try.