A class of devas born in the Realm of Infinite Space (ākāsānañcāyatana) (M.iii.103).
They belong to the formless (arūpa) world and their life term is twenty thousand world-
Their mind arises and ceases moment by moment (Kvu.i.207‑8).
In the description of the Arūpāvacarabhūmi, these devas represent the lowest limit, the highest being the Realm of Neither Perception nor Non-