If your commute isn't too stop and go and your ac allows you to change vents and such without the blower being on, you should be able to set defrost, cold, and outside air and just use dry air from outside the car to provide some defogging.
It's not the orifice, it's the angle. Your nose outlets are pointing down, the equally humidified expiration is directed downward into your lap not forward towards the cold glass.
I think it's the orifice and the angle. Next time you're outside try it. Breathing out of your mouth naturally carries more moisture with it.
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