Should I Be Concerned About Secondhand Vaping? What Parents Need to Know Campaign for Tobacco Free Kids 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 Vaping is not for children and it's not risk free. The long term effects are not known and some vapes can contain dangerous materials that affect children's central nervous systems and brain development,