Mask Frame

Thermal mold to top T arms to the nose. Form an arc with the shaft. Mold the chin-base to 90 degrees so that it rests on chin comfortably.


If too much pressure is on the nose, then the arc is uneven.

If it the frame keeps sliding down past the chin, the arc is uneven or the chin-plate is angled.

If the corners of the T arms are poking the cheeks/nose, they need to flair out more.