A BiPAP (bilevel positive airway pressure) machine is a type of noninvasive ventilation that helps people breathe by delivering pressurized air into the upper airway that leads to the lungs. It is a form of positive pressure ventilation that can be used to treat various medical conditions that impair breathing, such as chronic obstructive pulmonary disease (COPD), obstructive sleep apnea, obesity hypoventilation syndrome, pneumonia, asthma flare-up, poor breathing after surgery, and neurological diseases that disturb breathing. Unlike invasive mechanical ventilation, which connects to a tube in the throat, BiPAP delivers air through a mask on the face. BiPAP machines have two pressure settings, inhalation positive airway pressure (IPAP) and exhalation positive airway pressure (EPAP), that allow for lower pressure levels during exhalation. BiPAP delivers higher pressure when you breathe in and lower pressure when you breathe out, which is different from continuous positive airway pressure (CPAP), which sends the same amount of pressure as you breathe in and out. BiPAP therapy is primarily used to treat central sleep apnea (CSA), as well as heart, lung, and neurological disorders that require structured airway support during sleep. BiPAP is a noninvasive ventilation and is not life support, and it doesnt take over breathing entirely like invasive mechanical ventilation does.