The victim is fighting for his life.
E-cigs contain trace elements of a chemical that can establish in the body after inhalation.
There are now 10 cities in Minnesota with the ordinance.
They're the ninth city in Minnesota to do so.
City councilors voted unanimously on Monday.
Five cities have already raised the smoking age to 21.
One mayor vetoed the move to raise the tobacco-buying age to 21.