Is vaping more harmful than smoking cigarettes? More people incorrectly think so: Newsroom UT Southwestern, Dallas, Texas No smoking electronic cigarette sign, ban to vape smoke. Forbidden on smoking icon. Vector illustration 35391300 Vector Art at Vecteezy The difference between smoking, vaping, and using heated tobacco, according to a new scientific study ESD 123 now offering free 'No Smoking Vaping' signs to the public