I have a friend who was given an emphysema diagnosis after he had trouble breathing and was wheezing. This surprised him because he has never been a smoker.
He has worked around farm chemicals for a long time, and they think these were absorbed in his system and caused the damage to his lungs.
There is nothing that will improve his condition, but he is given some medication that will help him control his symptoms.
I had always associated emphysema with someone who smoked or had lung cancer. It is too bad this had to happen to someone who always tried to take good care of himself.