Mechanical Ventilation is a medical technique used to assist or replace spontaneous breathing in patients who are unable to breathe adequately on their own. This method employs a machine called a ventilator to deliver oxygen and remove carbon dioxide from the lungs, ensuring that the body receives the necessary gases for proper function. The use of mechanical ventilation is common in critical care settings, such as intensive care units (ICUs), where patients may suffer from conditions like pneumonia, acute respiratory distress syndrome (ARDS), or during surgeries requiring anesthesia. It can be used temporarily or for extended periods, depending on the patient's needs.