A ventilator is a medical device that helps patients breathe by delivering oxygen to the lungs and removing carbon dioxide from the body. Ventilators are commonly used in hospitals to support patients with respiratory failure, such as those with pneumonia, chronic obstructive pulmonary disease (COPD), or acute respiratory distress syndrome (ARDS). Ventilator research focuses on improving the design, functionality, and effectiveness of these devices to provide better outcomes for patients with respiratory issues. This includes studying the impact of ventilator settings, modes of ventilation, and technologies used in ventilators to optimize patient care and improve survival rates. Additionally, research may also explore the use of ventilators in different healthcare settings, such as in home care or during emergencies.