What is positive pressure breathing?

Positive pressure breathing is a technique where air is delivered to the lungs under pressure, allowing for greater ventilation and oxygenation. This method is commonly used in medical settings, such as with ventilators for patients who cannot breathe adequately on their own. It can also be utilized in Scuba diving and hyperbaric oxygen therapy to enhance gas exchange and improve respiratory function. Unlike normal breathing, which relies on negative pressure created by diaphragm movement, positive pressure breathing actively pushes air into the lungs.