And if you smoke cigarettes, stop now.
Why? If you smoke or not this can still be deadly. Although I agree with the statement to stop smoking.
I switched over to vaping a while back. It's been known for quite sometime that propylene glycol (an incrediant in vaping liquid) has this effect.
"The mice that first inhaled propylene glycol first all survived, but the mice that only inhaled the flu virus all died. Dr. Robertson believed that inhaling propylene glycol could effectively kill the flu virus and even pneumonia. “The propylene glycol itself was a potent germicide.Mar 11, 2015"
Scientist Discovers that Inhaled Propylene Glycol Kills the Flu ...