ComfortGel Blue, ComfortGel, ComfortFusion, and
ComfortSelect mask patient and clinician fitting guide
Sizing the cushion
Place the sizing gauge over the nose. A sizing gauge is available as both a separate
plastic piece and on the mask package.
Choose the smallest size that is wide enough to extend beyond the nostrils
but does not obstruct normal nasal breathing.
Preparing the mask for fitting
Loosen the straps on the headgear
by adjusting the Velcro tabs.
Making initial adjustments
Make initial adjustments while sitting.
Place the mask cushion against the face.
Gently squeeze the sides of the
StabilitySelector and slide the arm
upward to set the forehead support
arm to its highest position.
Pull the headgear over the head.
Disconnect one side of the
headgear by releasing one
ball-and-socket Quick Clip
from the faceplate socket.
Attach the Quick Clip on the
disconnected side. For easy attachment
of the Quick Clip, use the index
finger as a guide to find the position
of the socket and press the clip into
the socket.
Facial landmarks
1. Sides of nostrils
2. Bridge of nose zone
3. Below the nose tip,
above the lip