Vaping exposes users to harmful levels of particulate matter, study suggests Vape Expectations: Say No to Second Hand Smoke Agent Nateur 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: How E cigs Work (Infographic) Live Science E Cig Vapor Or Secondhand Smoke: Which Is Worse For You? Vaping might be more dangerous than smoking New York Post