Educational model — an idealized single-compartment lung. Not a medical device, not for clinical use, and not a
substitute for a ventilator's operator's manual or clinical judgment.
Mode
Lung characteristics
stiffer lung = lower compliance (ARDS ≈ 20–40)
obstruction = higher resistance (COPD ≈ 20–40)
Ventilator settings
inspiration ends when flow falls to this % of peak
Patient effort (Pmus)
0 = passive. Raise it to see effort deform the waveform opposite the control variable (VC → scooped pressure; PC → extra flow).