aërophore

from The Century Dictionary.

• noun A respirator in the form of a tank, into which the air exhaled from the lungs passes, and which contains chemicals designed to revive it and fit it to be breathed again. It is carried on the back like a knapsack, and was contrived for the use of firemen in entering burning buildings, etc. See respirator.
• noun An instrument for filling with air the lungs of a still-born child.
• noun In textile spinning-rooms, a device used to diffuse moisture throughout the air.