Exhausting Exhaust

Driving can be exhausting because of all the exhaust spewing from so many angry tailpipes. Where I live there are no controls on toxic auto emissions, pollutants, and nasty in-your-face gook. So in self-defence I've joined hands with my air circulation button. I'd rather breathe my own air anyway. It's odourless, colourless, and at least I know what's in it.