A new study was published today in Journal of Chromatography A. The study was performed by the Spanish Council of Scientific Research. They measured the levels of several volatile organic compounds (VOC, they measured 156 compounds) in indoor air, normal exhaled breath, smoke of tobacco cigarettes, exhaled breath of smokers after taking cigarette puffs, e-cigarette aerosol and exhaled breath of vapers after taking e-cigarette puffs. The results of the study basically showed that indoor air and normal exhaled breath contains more VOCs that the e-cigarette aerosol! I calculated 17 and 25 VOCs in the 2 e-cigarettes tested, 36 VOCs in indoor air and 42 in normal (non-smoking, non-vaping) exhaled breath. Tobacco cigarette smoke contained 86 VOCs, and exhaled breath after smoking similarly contained a large number of VOCs. Read the full article at: www.ecigarette-research.org