White Smoke/Dust Coming from AC vents?

Question

There is white smoke/dust coming out of the AC vents of my 2007 saturn....when I turn off the AC it stops....should I be really worried? Is this normal.... I'm driving from NY to FL and I still have 8 more hours of drivin to go...Its hot and humid and I need my AC...is my car ok? what is it? there is no odor...my car isn't gunna blow up is it? hahaha

Answer 1

Turn on the heater and if the dust/smoke comes out, there's something in the ducts. If its only with the A/C, roll the windows down and stand outside the car. Turn on the A/C on high and see if the smoke goes away. Feel the smoke and see if its ice cold. If it is this is freon and dangerous to breathe. But I don't think it's freon because freon leaks are quick and if there is a leak it would leak weather the A/C was on or not.

Answer 2

"if the A/C is putting out cold air, and the outside air is hot and humid, you will see vapor in the air, especially after just getting started down the road." - another yahoo answers person