Is Vaping Without Nicotine Safe? V2 Cigs UK Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking Nicotine absorption from electronic cigarette use: comparison between first and new generation devices Scientific Reports Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY