a device that changes a liquid into a spray (= liquid in the form of very small drops) so that, for example, a medical drug can be breathed in

Nebulizers are machines that have masks for asthma patients to breathe in their medication. 雾化器是一种让哮喘病人通过一个罩子吸入药物的机器。

He was allowed home but needs to be on a nebuliser six times a day to get drugs and oxygen to his lungs. 他得到允许回家，但是需要每天使用六次雾化器，以便将药物和氧气输送到肺部。