respirator
Concise Oxford English Dictionary © 2008 Oxford University Press:
respirator/ˈrespəreɪtə(r)/
▶noun
- 1 an apparatus worn over the mouth and nose or the entire face to prevent the inhalation of dust, smoke, or other noxious substances.
- 2 an apparatus used to induce artificial respiration.
'respirator' also found in these Oxford entries:

