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The levels of toxic chemicals in the e-cigarette vapor were found to be 1 to 2 orders of magnitude smaller than with cigarette smoke but greater than from a nicotine inhaler. [13] Nearly all e-cigarettes evaluated, toxic and irritation-causing carbonyls were identified. [65] Reports regarding the levels of toxic chemicals were inconsistent. [65]
The yield of chemicals found in the e-cigarette vapor varies depending on, several factors, including the e-liquid contents, puffing rate, and the battery voltage. [14] A 2017 review found that "Adjusting battery wattage or the inhaled airflow modifies the amount of vapor and chemical density in each puff."
Traditional nicotine found in many vapes and pouches is extracted from tobacco leaves. 6-methyl nicotine, in contrast, is made entirely in the lab using chemicals.
As of 27 August 2019, the most frequently used product reported by patients experiencing respiratory, gastrointestinal, and/or constitutional symptoms in Illinois and Wisconsin was the THC product called Dank Vapes. [3] Dank Vapes was the most commonly reported product brand used by patients nationwide, although there are regional differences. [2]
Vapes tested from five well-known brands had pesticide loads that exceeded federal Environmental Protection Agency risk thresholds for harm from a single exposure, The Times and WeedWeek found.
Vaping intermittently or frequently has been linked with toxic lead and uranium exposure, according to a new study.
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Vaping-associated pulmonary injury (VAPI), [4] also known as vaping-associated lung injury (VALI) [1] or e-cigarette, or vaping, product use associated lung injury (E/VALI), [2] [a] is an umbrella term, [15] [16] used to describe lung diseases associated with the use of vaping products that can be severe and life-threatening. [3]