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 E Cigarettes (Vapes) Smoking and Tobacco Use CDC Vaporizers in the USA Buy Vapes & Vaporizers Online Haze Smoke Shop USA Smoking VS Vaping, the facts. Prime Vapes UK Half as many Britons' vape as smoke An updated overview of e cigarette impact on human health Respiratory Research Springer Nature Link