6
PATIENT INTERFACE ASSEMBLY AND FITTING
1. Mask & Valve Assembly
a. The mask is available in a selection of sizes. Choose the size the fits you best.
b. The valve is universal, i.e., the same valve will fit all sizes of either the nasal pillow or the
nasal mask.
c. When assembled correctly, the mask sits within a circumferential groove in the valve (
Fig. 1
).
NOTE: The valve does not require any specific “clock face” orientation within the mask.
Fig. 1:
Unassembled Mask and Valve
