abbreviation for continuous positive airway pressure: a treatment for conditions such as some respiratory diseases and sleep apnoea, consisting of a mask attached to a device, that helps keep a person's airways (= the passages through which they breathe) open so that air can flow to the lungs

My first few nights using CPAP at home, it took some getting used to. 我刚开始使用持续气道正压仪没几天，还需要点时间适应。

I have sleep apnoea and have recently started using a CPAP machine to get a more restful night of sleep. 我有睡眠呼吸暂停症，最近开始使用持续气道正压仪来让我晚上睡得更安稳些。

CPAP devices can be used to support patients affected by COVID-19. 持续气道正压仪可用来支持对新冠病毒患者的治疗。