3
Figure
a
A
Mask Cushion with Exhalation Ports
(Do not block)
B
Mask Frame
C
Elbow with Anti-Asphyxia Valve
(Do not block)
D
Quick Release Tabs
E
Quick Release Tube with swivel
F
Headgear Crown Strap
G
Headgear Top Side Strap
H
Headgear Bottom Side Strap
I
Headgear Clip
A
C
F
G
H
I
1
B
D
E
2
Verify the Anti-Asphyxia Valve
The anti-asphyxia valve consists of an air inlet and a flapper
b
. With the airflow
turned off, verify that the elbow with the flapper is lying flat
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.
Warning:
Do not block or seal the anti-asphyxia valve.
