respirator - definition and synonyms

noun [countable] 

Your browser doesn’t support HTML5 audio

  1. 1
    a machine used in hospitals for helping people who cannot breathe on their own
    be on/be put on a respirator:

    He had pneumonia and was put on a respirator.

  2. 2
    an object covering your nose and mouth that helps you to breathe when you are in a place that is full of smoke or gas