For both positive and negative pressure ventilators, exhalation:

Question

Quizplus · Accepted Answer

Exhalation is passive for both positive and negative pressure ventilators. In positive pressure ventilation, the ventilator delivers air into the patient's lungs which then passively flows out during exhalation. In negative pressure ventilation, the negative pressure around the patient's thorax causes air to flow into the lungs during inspiration, while exhalation occurs passively as the pressure inside the lungs returns to normal.

For Both Positive and Negative Pressure Ventilators, Exhalation