Inspiratory Breathing resistance in bag mode*
l/min kPa cmH2O
5 0.06 0.6
30 0.21 2.1
60 0.49 5.0
*Values include patient circuit tubing and wye-piece 0.049 kPa (0.5
cmH2O) at 60 l/min. Patient circuit tubing and breathing system
configurations affect resistance.
Expiratory Breathing resistance in bag mode*
l/min kPa cmH2O
5 0.05 0.5
30 0.15 1.5
60 0.37 3.8
EZchange canister system and condenser, absorber mode
5 0.06 0.6
30 0.19 1.9
60 0.44 4.5
EZchange canister system and condenser, canister removed
5 0.06 0.6
30 0.19 1.9
60 0.44 4.5
*Values include patient circuit tubing and wye-piece 0.03 kPa (0.3 cmH2O)
at 60 l/min. Patient circuit tubing and breathing system configurations
affect resistance.
Pressure flow data (APL valve completely open)
Flow (l/min) Flow (l/s) APL pressure cmH2O
3 0.05 0.93
30 0.51 1.70
60 1.0 2.44
70 1.17 3.30
Gas scavenging
All scavenging
Positive pressure relief 10 cmH2O
Aisys CS²
11-14 2067226-001
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