COPD and Vaping: Understanding the Risks and Long Term Effects Vaping May Seem Safer Than Cigarette Smoking, but It Still Raises Lung Disease Risk Top 5 favorite pro vaping pro harm reduction studies. There are tens of thousands of them, but there are my five favorite most compelling studies done on the topic of nicotine vaping for tobacco E Cigarettes and Vaping PPAC Central Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab