Philips RESPIRONICS DreamWear Mode D'emploi page 12

Specifications
The technical specifications of the mask are provided for your
healthcare professional to determine if it is compatible with your
CPAP or bi-level therapy device.
Warning: Use outside of these specifications may result in
ineffective therapy The pressure flow curve shown below is an
approximation of expected performance. Exact measurements
may vary.
Pressure Flow Curve
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
0
Resistance with Flaps Closed to Atmosphere
Drop in Pressure (cm H
All Cushion Sizes
Closed to Atmosphere: A minimum of 3 cm H
to ensure that the flaps close.
Open to Atmosphere: At an airway pressure less than -1 cm H
flaps will be open.
Inspiratory and Expiratory Resistance with Flaps Open to
Atmosphere at 50 SLPM (cm H
Inspiratory Resistance
Expiratory Resistance
5 10
Pressure (cm H
O) at 50 SLPM
2
0.4
1.8
12
15 20
O)
2
at 100 SLPM
0.9
O must be maintained
2
O)
2
25
3.1
O, the
2
30