A BiPAP device, or Bilevel Positive Airway Pressure device, is a type of non-invasive ventilator used to assist individuals with breathing difficulties. It delivers two levels of air pressure: a higher pressure during inhalation and a lower pressure during exhalation, helping to keep the airways open and improve oxygen intake. BiPAP devices are commonly used for conditions such as sleep apnea, chronic obstructive pulmonary disease (COPD), and other respiratory disorders. They are typically equipped with a mask that fits over the nose or mouth, allowing patients to receive the necessary airflow while they sleep or rest.