Vaping vs. Smoking Weed: Health Risks & Safety Insights Oliver Grundmann, a professor at the University of Florida College of Pharmacy, shared insights with the Miami Herald on illegal marijuana products sold at smoke and vape shops across Florida that are Study finds cannabis vaping more harmful than nicotine vaping 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 =