The entity is simultaneously angelic and demonic, that is, depending on the circumstances, either yazata - "worthy of worship" - or daeva, which in Zoroastrian tradition is a demon. Scripture frequently applies the epithet "good" when speaking of one or the other in a positive context.
In Zurvanism (Zurvanite Zoroastrianism, a now-extinct form of Zoroastrianism), Vata-Vayu represented two facets of the quarternary Zurvan. In this arrangement, Vata-Vayu represented "space" while the other two facets represent "time."
Vayu-Vata has Indo-Iranian roots, and has the same name in historical Vedic religion.