Comparing Costs: Cigarette Smoking vs. Vaping Vaping vs Smoking How BOTH Harm Your Mouth, Gums & Teeth While smoke and vapor may seem similar, smoke from burning delivers a harmful chemical punch due to its chemical reaction. Explore what's inside both and uncover the differences here: https: www.pmi.com our science the difference between cigarette ASHES, Vol. 17(9) Are vaping and smoking similar, in terms of quitting? BASIS (The Brief Addiction Science Information Source) E cigarettes: Facts, stats and regulations