inhaler

One that inhales.

A device that produces a vapor to ease breathing or is used to medicate by inhalation, especially a small nasal applicator containing a volatile medicament.

One who inhales.

In medicine, an apparatus for inhaling vapors and volatile substances, as steam of hot water, vapor of chloroform, iodine, etc.

An apparatus which enables a person to breathe without injury in a deleterious atmosphere, as that used by persons of delicate lungs to prevent damp or cold air from entering the lungs, or that used by cutlers and others who breathe an atmosphere charged with metallic particles; a respirator.