Ok I decided to replace my Cabin Filter.
Here it is:
Open Hood and remove two really cheap plastic screws that hold down the plastic cowl section on the passenger side.
No need to remove the cowl or wiper just lift the cowl section a bit.

You can see the filter in place

Filter removed.

Shown Removed again.

Filter is in a plastic frame Here shown with removed and new filter installed.
The thing was Filthy with only 8000 mi.
Just replace and re-install.
Took about 10 minutes.
Cost of filter was $20 from Ford.
Too Easy, and now you know.
[addsig]