Symbol 1865 from ISO 7000 - Title/Meaning: Ventilation air flow, upper air outlet Function/description: To identify the control that allows air to flow from the upper air outlets. To indicate that air is flowing from the upper air outlets.
Additional information: 
On road vehicles: arrow may be coloured blue to denote cool air or red to denote heated air.
Own work using: iso.org/obp/graphics/grs/1dda90c9-9164-455c-8656-8b2cffc17e5f 200.png
Vectorization:  Mrmw