From: The effect of the pulmonary time constant on the cough peak flow rate at two different inflation pressures: a bench test model
Time constant (ms)
420
1078
1850
2800
CPFR l/min
419
185
108.7
67.6
Inflation to
SD 44.6
SD 25.3
SD 17.1
SD 11.7
31 cmH2O
544
353
225
112
SD 70.8
SD 56.6
SD 29.4
SD 29.0
45 cmH2O