Is Second Hand Vape Smoke Bad For You? Learn How to Avoid its Side Effects It's important to protect children from cigarette smoke, and it's just as important to do the same with vaping. Secondhand vape smoke aerosol isn't harmless It contains tiny particles that can If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Secondhand Vape Exposure: Effects, Who's at Risk, and More