What is the primary difference between CPAP and BiPAP machines?

The primary difference between CPAP (Continuous Positive Airway Pressure) and BiPAP (Bilevel Positive Airway Pressure) machines lies in the way they deliver air pressure. CPAP machines provide a constant, single level of pressure throughout the entire breathing cycle, which is beneficial for individuals who need consistent airflow to keep their airways open during sleep. This makes it effective for treating conditions like obstructive sleep apnea.

In contrast, BiPAP machines offer two levels of pressure: one for inhalation (higher pressure) and one for exhalation (lower pressure). This bifunctional feature allows for easier breathing, especially for patients who might struggle with a constant pressure while exhaling. The variability of pressure in BiPAP can enhance comfort and compliance for individuals with specific breathing difficulties or higher airway resistance.

Understanding this distinction is crucial for determining the appropriate treatment modality for patients based on their specific respiratory needs.