E cigarettes, vaping and teens Children's National Tobacco Smoke, Vaping, and Asthma AAFA.org My 3 year old accidentally smoked a vape someone left lying around something that didnt belong to me or my husband and inhaled it before we even realized what was in his hand. He was coughing really Vaping harms your health Cancer Institute NSW Dangers associated with e cigs Poison Control E liquids and vaping products can be dangerous to young children. Vapes can look appealing to little humans, so they should be stored out of reach, similar to poisons and medication. If you