Meaning of VENTILATOR in English
/ ˈventɪleɪtə(r); NAmE / noun
a device or an opening for letting fresh air come into a room, etc.
a piece of equipment with a pump that helps sb to breathe by sending air in and out of their lungs :
He was put on a ventilator.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005