Expiratory breathing resistance in bag mode*
l/min kPa cmH2O
Absorber canister installed
5 0.057 0.57
30 0.247 2.47
60 0.560 5.60
Absorber canister removed
5 0.057 0.57
30 0.247 2.47
60 0.560 5.60
*Values include patient circuit tubing and Y-piece 0.065 kPa (0.65 cmH2O)
at 60 l/min. Patient circuit tubing and breathing system configurations affect
resistance.
Pressure flow data (APL valve completely open)
Flow (l/min) APL pressure cmH2O
(dry)
APL pressure cmH2O
(wet)
Open 0.978 0.996
3 1.07 1.08
30 1.46 1.49
60 2.20 2.31
70 2.65 2.81
Gas scavening
Passive scavenging
Positive pressure relief 10 cmH2O
Negative pressure relief 0.3 cmH2O
Outlet connector 30 mm male taper ISO
Active scavenging
Disposal system
type
Outlet
connector*
Flow range Disposal
connection
High flow, low
vacuum
BSI 30 mm
threaded
50 to 80 l/min ISO 1 H
11 Specifications and theory of operation
2076152-001 11-13
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