Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Can Vape Trigger Fire Alarm Vape Sets Off Fire Alarm: How Do Vape Detectors Work? How Bad Is Second Hand Vape Smoke Is Second Hand Vape Smoke Dangerous? Vapes are commonly used as a way to stop smoking but it could have a huge unexpected risk Second hand vape smoke linked to more asthma symptoms in kids Tobacco Smoke, Vaping, and Asthma AAFA.org