Secondhand exposure to vaping can cause serious respiratory issues study The Jerusalem Post Juul study shows secondhand vaping emissions are less toxic than cigarette smoke 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 Secondhand Vape Exposure: Effects, Who's at Risk, and More 5 Vaping Facts You Need to Know Johns Hopkins Medicine