Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times 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 How To Smoke A Vape Like A Pro Do You Inhale Vape the Same Way as Cigarettes? Vaping Could Make You 40 Percent More Likely to Get Respiratory Disease The Brink Boston University