Bio-potential qua inhalation and exhalation-
The fourth of the six types of Paryāpti (bio-potential);
the production of material potency, (at the very beginning of any birth (Bhava)), capable of functioning as in-take, transformation and giving up of Pudgalas (material clusters) used in inhalation and exhalation.
poggaIajoggāṇāpāṇūṇa gahaṇa-ṇisiraṇasattī āṇāpāṇupajjatī.
(NandīCū p.22)