I don't think I've ever been harassed by a vaper or non-vaper, my immediate loved ones maybe when I first started and only out of concern.
I educated then and showed them proof, my wife now which was one of the most concerned people is now a 3 and a half year vaper and can now run and get up in the morning without coughing.
Quite honestly, if it's someone outside of your circle tell them to piss off, If it's someone you care about education will go a long way and if you have facts to backup what you say they won't be as closed minded as a stranger would because they would actually care.
I educated then and showed them proof, my wife now which was one of the most concerned people is now a 3 and a half year vaper and can now run and get up in the morning without coughing.
Quite honestly, if it's someone outside of your circle tell them to piss off, If it's someone you care about education will go a long way and if you have facts to backup what you say they won't be as closed minded as a stranger would because they would actually care.