Secondhand Vape Exposure: Effects, Who's at Risk, and More 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 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 Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM