Is Second Hand Vape Smoke Harmful Secondhand smoke and secondhand aerosol Critical Appraisal of Exposure Studies of E Cigarette Vaping refers to the use of an electronic cigarette, or other vaping device, to breathe in an aerosol, often containing nicotine, flavouring and other chemicals. Unlike cigarette smoking, vaping doesn't burn tobacco. Does Vaping Smell? Does It Leave A Stink? E cigarette aerosol tied to whole body toxicity in 20 year review < Hospital < Article KBR Vaping Equals