This modification of Esmarch's inhaler possesses the following advantages:
A simple, firm and rapid method of fastening gauze or other material to the Esmarch frame by fitting the ring inside of the frame instead of on the outside, as in the old model.
The ring and frame are so fastened together that one can not be lost from the other, nor can they in any manner be put together wrong.
The patient is not annoyed by the rough edge of the gauze or metallic frame, and yet it will fit closer to the face, thereby requiring less of the anesthetic.
Should the gauze become soiled with vomit or sputa during anesthesia it can be almost instantly replaced with new.