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The main chemical found in the e-cigarette vapor was propylene glycol. [44] A 2013 study, under close to real-life conditions in an emission test chamber, using a test subject who took six forceful puffs from an e-cigarette, resulted in a high level of propylene glycol released into the air. [55]
A 2016 review stated, "Despite widespread promotion that e-cigarettes are safer than regular cigarettes due to less tar production, there are multiple chemicals found in these products. These include nicotine, formaldehyde, acetaldehyde, lead, acetone, copper, and cadmium. These compounds can be addictive and/or carcinogenic.
The specific origin of the e-liquid ingredients is often unclear. [149] When content information is given on the packaging, it is usually incomplete. [30] Contamination with various compounds in e-liquids is a result of poor quality control. [30] Some nicotine and TSNAs have been found in e-liquids labelled as 'no nicotine'. [30]
The Vaporized Nicotine and Non-Nicotine Products Regulation Act, officially recorded as Republic Act No. 11900, is a law in the Philippines which aims to regulate the "importation, sale, packaging, distribution, use and communication of vaporized nicotine and non-nicotine products and novel tobacco products", such as electronic cigarettes and heated tobacco products. [1]
Dai and coauthors found that among teens who vaped intermittently — for six to 19 days total out of the past 30 days — urine lead levels were 40% higher compared with occasional vapers ...
In October 2021, researchers at Johns Hopkins University reported over 2,000 unknown chemicals in the vape clouds that they tested from Vuse, Juul, Blu and Mi-Salt vape devices. [ 171 ] In 2019–2020, there was an outbreak of vaping-related lung illness in the US and Canada, primarily related to vaping THC with vitamin E acetate .
CDC investigators identified direct exposure to chemicals present in illegal cannabis vaping products as the likely culprit, but did not rule out chemicals in nicotine vapes as possible causes. [157] CDC: "No specific e-cigarette device or substance has been linked to all cases, and e-cigarettes include a variety of chemical and additives".
Regulation of e-cigarettes is done by law 4207, which regulates smoking and was amended in June 2013 by article 26 of law 6487 [249] to also apply to items which do not contain tobacco: "Herbal water pipes and all kind of cigarettes which do not contain tobacco but are used in a way to imitate tobacco products shall also be deemed as tobacco ...