nonbreathing

They become less than well, then go into an involuntary nonbreathing mode?"

The nonbreathing ones bore no insignia and stood as rigidly as robots.

By the time they were done, the bundled-up nonbreathing Leewit looked unnervingly like a small mummy laid away for a thousand-year rest.

Melody, in a nonbreathing host, could not analyze its type, but she was certain it was an inert substance, probably to protect the intricate mechanisms of the Ancients.

(At a certain level, a breathing stroke becomes just as fast as a nonbreathing stroke; therefore, very experienced competitors - such as Michael Phelps - may breathe every stroke.)

While I am on the subject of the Borgia poison, the one so effective against the nonbreathing component of humanity, let me say here that I believe one of its vital components must be some compound of burnt and powdered wood.