PHILIPS Respironics ComfortGel Full Instructions For Use Manual page 9

8
Before Use
• Hand wash the mask to remove any
dust that accumulated during shipping or
storage.
• Read and understand the instructions
completely.
• Verify that the air entrainment valve
functions correctly.
• Wash the patient's face.
• Remove the Quick Start fitting tips (if
attached to the headgear).
Entrainment Valve
The entrainment valve consists of an air
inlet and a flapper. With the airflow turned
off, verify that the elbow with the flapper
is lying flat (Figure 2) so that room air can
flow in and out through the air inlet. Next, with
the airflow on, the flapper should now cover
the air inlet and air from the CPAP or bi-level
device should flow into the mask. If the flapper
does not close or does not function properly,
replace the mask.
ComfortGel Full
A
B
Figure 2
A = Flapper is lying flat
B = Flapper is covering the
air inlet
Warning
Do not block or
try to seal the
entrainment valve or
the exhalation vents.