A slavebot, like Oulieva, has an artificial "lung"; it has many functions : 1- It simulates breathing, in order to make her more human-like. 2- It provides airflow for her voice chords; her voice is more natural that way. 3- It samples ambient air, through her nose, for dangerous gas, vapor, smoke and dust. 4- It cools down her brains (their main heat exchangers are located within her air cavities) and her body, while she is "awake.” She does not need oxygen unless her batteries are a fuel cell type. I would expect that lithium-based cell technology will still be in use at that time (in the 2030s). In this picture, during one of her pre-shipment tests, Oulieva is asked to blow on a ping pong ball in order to push it as far as possible, in one single big expiration. Oulieva is based from the Maia character by Mar3D that I modified somewhat, her skin material by pixeluna, and with the Zofia hair by SWAM on which I have added some morphs. Red Tshirt from powerage