are cpap and bipap masks the same?
CPAP or BiPAP: Which One is Better? CPAP and BiPAP machines look similar, have the same attachments, and both use the same CPAP mask and supplies. ... CPAP machines are primarily used to treat obstructive sleep apnea, while BiPAP machines are used to treat central sleep apnea, complex sleep apnea, or COPD.