Reply to "Cabin ventilation… where does it go?"

I crack the passenger window an inch or two to get a little circulation at highway speed if needed. I only drive when there’s no chance of rain. Living in So Ca. That’s most of the time. During canyon runs, one or both windows are all the way open. 
Speaking of windows, I installed the Vader window setup. Way worth the money, the windows open and close much faster and the windows go all the way down, no more 3/4” of glass sticking up. Much lighter too.