E Cigarettes (Vapes) Smoking and Tobacco Use CDC Complete Guide to Secondhand Vaping Devices Vape Direct Secondhand vape plumes could form lung damaging radicals American Chemical Society 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 asthma tobacco Asthma Initiative of Michigan