Secondhand vape plumes could form lung damaging radicals American Chemical Society Second hand Vape Vs Secondhand Smoke Project Filter Secondhand Vape Vaping poses lower secondhand risk than Can You Get Secondhand Smoke From a Vape or E Cigarette? Secondhand Smoke and Electronic Cigarette Aerosols US EPA Does Vaping Cause Secondhand Smoke? Study shows second hand vaping exposure very low compared to second hand smoking