Ventilator Function: How Do Ventilators Work? Ventilators are life-saving machines that help people breathe when their lungs are unable to do so on their own. They are often used in hospitals for patients with severe respiratory illnesses such as pneumonia, chronic obstructive pulmonary disease (COPD), and acute respiratory distress syndrome (ARDS). Ventilators work by bypassing … Continue reading Ventilator Function: How Do Ventilators Work? More