interesting. the ND i went to was a woman(both were in fact). and one of them left for the states soon after i saw her.
if a person is not willing to do for themselves, then all they can do is trust others to do for them. it is really sad.
hopefully you got a car with a heppa filter in it. the 2006 matrix i was driving for a while on contract tot he company that owned it had a heppa filter in it. i used it exclusively and put an ionic breeze in the car as well. those diesels on the road are bad news for lungs.