b. Menthol

Dr. Farsolinos’s study also measured the safety limits of the E-Juices that contained diacetyl and acetyl propionyl. Using the NIOSH (National Institute for Occupational Safety and Health) guidelines, it was found that both diacetyl and acetyl propionyl were found to have more than double times the NIOSH safety guidelines. It is worth nothing however that both diacetyl and acetyl propionyl are found in regular cigarettes. However, the levels of concentration in regular cigarettes are a 100 times more for diacetyl and ten times more for acetyl propionyl than the E-Juices that were tested. Considering obliterative bronchiolitis is not a known disease among smokers (even the heavy pack a day smokers) we can assume that even at double the NIOSH standards the levels of diacetyl and acetyl propionyl are not fatal. This is just an assumption much more research of the effects of diacetyl and acetyl propionyl are needed before making a clear judgment.

The Rest of the Story

In September 2010, I specifically that:

In a submission to the FDA regarding the proposed deeming regulations, Stan Glantz and colleagues have called on a by electronic cigarette companies: namely, stating that electronic cigarettes are safer than tobacco cigarettes. The authors of this comment want the FDA to expressly prohibit electronic cigarette companies from informing consumers that vaping is safer than smoking.

While the attacks were mostly personal, and not worthy of expounding here, the shred of substance was that more recent studies which compared lung cancer risks of successive cohorts of smokers have found increased risk among more recent cohorts. From these studies, the Surgeon General's report - and these co-authors - conclude that filters must convey an increased risk of cancer.

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