Vaping might seem safer than smoking but your heart could tell a different story How secondhand smoke, thirdhand smoke & vaping affects kids Amazon.com: NICOTESTS Nicotine Second Hand Smoke and Vape 10 ng Test (5 Pack) : Health & Household Should I Be Concerned About Secondhand Vaping? E Cigarettes (Vapes) Smoking and Tobacco Use CDC Vaping: not a safe alternative to smoking, new study suggests, and it may be more harmful to health than tobacco in normal cigarettes South China Morning Post