Combustion in Cigarettes Smoke Free Approach PMI Science Most people switch to dry herb vaping for one reason but stay for another. Here's the real lesson: Combustion = smoke, lingering odor, and byproducts you may not want Vaporization = A Close Look at Vaping in Adolescents and Young Adults in the United States The Journal of Allergy and Clinical Immunology: In Practice Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results La combustion, le cur du problme Who Invented Vaping, How Vaping Started: a History Business Insider