A BiPAP (Bilevel Positive Airway Pressure) machine is a type of ventilator that helps people with breathing difficulties, such as those with sleep apnea or chronic obstructive pulmonary disease (COPD) etc. Unlike CPAP, which provides a constant pressure, BiPAP delivers two levels of pressure: a higher pressure when you inhale (IPAP) and a lower pressure when you exhale (EPAP). This dual pressure system helps improve comfort and efficiency for individuals who have trouble breathing with a single, continuous pressure.