Does BiPAP Use Oxygen or Just Air Pressure?

BiPAP, or Bilevel Positive Airway Pressure, is a non-invasive ventilation therapy that aids individuals with breathing difficulties. This medical device supports respiration for conditions like obstructive sleep apnea, chronic obstructive pulmonary disease (COPD), and respiratory insufficiency. By delivering pressurized air through a mask, BiPAP machines keep airways open and facilitate easier breathing.

How BiPAP Delivers Support

A BiPAP machine draws in ambient room air, filters and pressurizes it, then delivers it to the user through a mask and tubing system. Its core function is to provide air pressure, not to generate or supply oxygen. This pressurized air prevents upper airway collapse and assists the lungs in taking in and expelling air. BiPAP devices deliver two different pressure levels: a higher inspiratory positive airway pressure (IPAP) during inhalation, and a lower expiratory positive airway pressure (EPAP) during exhalation. This dual-pressure system makes it easier to breathe out against the machine’s pressure, enhancing comfort and compliance compared to single-pressure therapies.

Clarifying BiPAP and Oxygen

BiPAP machines operate by processing and delivering filtered room air, not by producing oxygen. Ambient air naturally contains about 21% oxygen, alongside nitrogen and other gases. When a BiPAP machine takes in this air, it simply pressurizes it to assist breathing, maintaining this natural composition. Therefore, the air provided by a BiPAP device contains the same percentage of oxygen found in the atmosphere.

The machine’s primary role is to provide mechanical support by applying pressure, keeping airways open, and aiding air movement into and out of the lungs. The therapy focuses on pressure delivery to optimize ventilation, rather than directly increasing oxygen concentration.

Integrating Supplemental Oxygen with BiPAP

While BiPAP machines do not generate oxygen, supplemental oxygen can be administered alongside BiPAP therapy when a patient’s condition necessitates it. This occurs when a healthcare provider determines that the natural oxygen content in room air is insufficient for the patient’s needs. Supplemental oxygen is supplied by a separate oxygen concentrator or tank.

To combine therapies, oxygen tubing from the source connects to the BiPAP circuit, usually via a “bleed-in” adapter or port. This adapter allows prescribed oxygen to mix with the pressurized air from the BiPAP machine before reaching the patient’s mask. The flow rate of supplemental oxygen is independently controlled and adjusted by the healthcare provider to meet individual oxygenation requirements.

Consulting Healthcare Professionals

Decisions regarding BiPAP therapy, including settings or supplemental oxygen addition, must always be made under a qualified healthcare professional’s guidance. Medical providers assess an individual’s respiratory needs and underlying conditions to determine appropriate BiPAP settings and if supplemental oxygen is required. Self-adjusting machine settings or attempting to integrate oxygen without professional medical advice can lead to ineffective treatment or dangerous health outcomes. Regular follow-ups with a doctor or respiratory therapist ensure the therapy remains optimized for the patient’s condition and that equipment is used safely and correctly.