Earlier quoted context omitted.
Key word: almost
It's certainly safe enough that the NHS is using vaping to get people off smoking
Same way chemo cures some cancer but is pretty damaging overall. But when the alternative is death, anything else is better.
PSA: Don’t start vaping if you don’t smoke, it’s lame. Don’t start smoking either, you’ll regret the health issues, earlier death, and money wasted.