When I was smoking:
Couldn't go up a flight of stairs without getting winded. If I had to carry anything, like groceries, I'd get winded AND break a sweat.
Lost my singing voice. My voice became raspy and I couldn't take a deep enough breath to sustain a note.
I had chronic bouts with bronchitis and sinus infections. I was probably on my way to emphysema and COPD, too.
Since I started vaping:
The stairs are no longer a challenge, whether I'm carrying anything or not. I can RUN up the stairs for the first time in years!
I'm starting to get my singing voice back and I couldn't be more pleased.
I have not had one sinus infection or even a hint of bronchitis. I'm nursing a mild stuffy nose right now, but I haven't missed a day of work.
So, that being said, am I sure that vaping is completely safe? No, I'm not. But, at this point it's a whole lot safer and has definitely improved my health. No cigarette will EVER be able to do that.