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Technical specifications
Pressure-flow curve
Dead space
information
Therapy pressure
Resistance with Anti
Asphyxia Valve (AAV)
closed to atmosphere
Inspiratory and
expiratory resistance
with Anti Asphyxia
Valve (AAV) open to
atmosphere
Anti Asphyxia Valve
(AAV)
open-to-atmosphere
pressure
Anti Asphyxia Valve
(AAV)
closed-to-atmosphere
pressure
The mask contains passive venting to protect
against rebreathing. As a result of manufacturing
variations, the vent flow rate may vary.
Physical dead space is the empty volume of the mask to the
end of the swivel. Using the large cushions it is <222 mL.
3 to 40 cm H
O
2
Drop in pressure measured (nominal)
at 50 L/min: 0.2 cm H
at 100 L/min: 0.9 cm H
Inspiration at 50 L/min
Expiration at 50 L/min
≤1.6 cm H
O
2
≤1.8 cm H
O
2
O
2
O
2
0.6 cm H
1.0 cm H
Pressure
Flow
(cm H
O)
(L/min)
2
3
19
4
22
8
32
10
37
12
41
16
48
20
54
24
60
28
66
30
69
32
72
36
77
40
82
O
2
O
2
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