Emphysema is a terrible lung condition where the cilia in the lungs dies.
I burnt mine smoking first, cigarettes, then premium cigars, inhailing.

The pacient dies asphyxiated, because can't get the air out of the lungs.
So no air can come in. It is progressive and unstoppable. (?)

I was a "moderate to severe" case. One foot in the grave. Until I started vaping.
Now, my condition has not deteriorated in the last five years.
I have 60% lung capacity still. Thanks to vaping.
Althought I have two nodules in my left lung that can turn into cancer.
But they are not growing. Vaping is wonderful!!!.

Cheers.