Study uncovers the hidden dangers of secondhand vape exposure to children How secondhand smoke, thirdhand smoke & vaping affects kids Is Second Hand Vape Smoke Bad For You? Learn How to Avoid its Side Effects When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association