Is Secondhand Vape Smoke Bad for You? The Truth on the Trend Molekule Myth Buster ~ "Second hand vape smoke" is actually water vapour and is not harmful to other people or the environment. #vape #vaping #vapeuk #ecigerette #smoke #quit Secondhand smoke and vape can trigger your child's asthma attacks. Smoking and vaping are unhealthy for everyone but especially harmful for people with asthma. Whether at home, in the car, or Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM E Cigs and Second Hand Vaping: Dangers and Protections