Hrmm, an inhaler that when you exhale tons of smoke comes from you. Might frighten even more people. What's that you say? take out the VG/PG so there is no vapor? Nah.
Thing that helps ppl switch to ecigs, is it looks and feels like an
ecig, and the vapor(which is not necessary) looks like smoke. It "simulates the cig feeling" If you take away the look, feel, vapor. Your only left with throat hit, and well, I don't think that would work for most people.
Just My opinion of course.