exhale vs ventilator

exhale

noun
  • An exhalation. 

verb
  • To draw out; to cause to be emitted in vapour. 

  • To pass off in the form of vapour; to emerge. 

  • To expel (something, such as tobacco smoke) from the lungs by action of the diaphragm. 

  • To expel air from the lungs through the nose or mouth by action of the diaphragm, to breathe out. 

  • To emit (a vapour, an odour, etc.). 

ventilator

noun
  • A machine that moves breathable air into and out of the lungs of a patient who is unable to breathe sufficiently. 

  • A device that circulates fresh air and expels stale or noxious air. 

  • Some behaviour or happening that relieves a tense atmosphere or situation. 

How often have the words exhale and ventilator occurred in a corpus of books? (source: Google Ngram Viewer )