“…Though final consensus has not been reached (Caponetto et al, 2013;Geiss et al, 2015;Wagener et al, 2012), some studies suggest that e-cigarette products may reduce risk and offer a safer alternative (Farsalinos et al, 2014) to combustible cigarettes for consumers and people exposed to second-hand smoke (Colard et al, 2015;Czogala et al, 2013;Mcauley et al, 2012;Schripp et al, 2013) when liquid formulation and devices are adequately controlled and regulated (American Industrial Hygiene Association, 2014;Cahn & Siegel, 2011;Trehy et al, 2011). Consequently, the need to apply strict and accurate methodologies to assess e-cigarette products is essential.…”