Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center 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 Evidence Mounts About the Health Impact of Second Hand Vaping Bisnar Chase PolitiFact When someone's vaping nearby, what are you breathing in? The risks of vape pens' secondhand aerosols In secondhand vape, scientists smell risk American Heart Association Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign.