Originally Posted by
Hipplewm
No, it covers only my nose - but you can't open your mouth when you wear it or you can't breathe due to the pressure from the air blowing in your nose. My travel CPAP has a exhalation valve on the hose right above the inlet filter and there is nothing covering that area. My travel CPAP is about the size of a soda can and is very small. I just plug it in and lay back. The last time I used it was August, but I am flying to Spain in early December and I'll use it then as well.
In the hospital, CPAP is considered an aerosol generating procedure that creates significant risk to others. Maybe the physics of a portable device is different, but using a CPAP on a plane could significantly increase the risk of transmission.