Second Hand Vaping: Minimal Impact Compared to Smoking Is Second Hand Vape as Dangerous as Secondhand Smoke? Vapesourcing 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 e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN