What Are the Risks from Secondhand Vape Smoke? NVB Inc. Chemicals Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London 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