Effect of second hand fumes from vaping on young lungs Bringing back evidence based Thursdays Secondhand vaping isn't harmless and the evidence is growing. A recent article from Medical News Today highlights what many of us in healthcare are already seeing: News Is Second Hand Vape Smoke Harmful? City Did you know that Secondhand vape and cigarette smoke have similar nicotine levels? For tips on how to protect yourself and your loved ones from toxic secondhand smoke please visit Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center