Symbol 0635B from ISO 7000 - Title/Meaning: Windscreen demisting and defrosting 
Function/description: To identify the control that distributes air flow to the front and side windows to aid in removing frost, fog and mist. To indicate the operational status of windscreen demisting and defrosting.
Own work using: iso.org/obp/graphics/grs/b3c26fda-f003-44af-88e5-5e519aac1a35 200.png
Vectorization:  Mrmw