To find the size of the gel cushion and the silicone flap, locate the bottom of the gel cushion, where the mask frame and full face cushion connect. The black letter printed on the bottom of the full face cushion designates the size of the full face cushion and silicone flap.
If the user removes the gel cushion from the silicone flap, the size will not be identifiable. The size of the gel cushion is not recorded, yet it directly corresponds to the size written on the silicone flap.
While you may find the information provided on this site helpful, please understand that it is not in any way intended to replace
the advice of a physician or medical professional. If you're concerned about your health or worried about specific symptoms,
please consult a doctor. If you have additional questions about our site, please consult our
for more information.