Quote
Propylene glycol, also called 1,2-propanediol or propane-1,2-diol, is an organic compound (a diol or double alcohol) with formula C3H8O2. It is a colorless, nearly odorless, clear, viscous liquid with a faintly sweet taste, hygroscopic and miscible with water, acetone, and chloroform.
Yes. Propylene Glycol has bad stuff in it like acetone and chloroform. Far from the amount of ingredients found in tobacco smoke.
Quote
Propylene glycol is considered generally recognized as safe (GRAS) by the U.S. Food and Drug Administration, and it is used as an humectant (E1520), solvent, and preservative in food and for tobacco products, as well as being one of the major ingredients of the "e-liquid" used in electronic cigarettes along with vegetable glycerin. It is also used in pharmaceutical and personal care products. Propylene glycol is used as a solvent in many pharmaceuticals, including oral, injectable and topical formulations, such as for diazepam and lorazepam which are insoluble in water.
Like ethylene glycol, propylene glycol is able to lower the freezing point of water, and so it is used as aircraft de-icing fluid. Water-propylene glycol mixtures dyed pink to indicate the mixture is relatively nontoxic are sold under the name of RV or marine antifreeze. It is also used to winterize a vacant structure
Hmm.. It appears to be recognized as safe by the FDA and is considered non-toxic. Why isn't that educating..?
What's that say there? It's used in the preservation of food!? NO WAY!! Guess you better read every ingredient in your food products from now one, sure as hell don't want to be poisoned by a non-toxic food preserver. Better tell the pharmacist you don't want any products with propylene glycol in it either, because of all the toxins and stuff ya know.
Quote
Research has suggested that individuals who cannot tolerate propylene glycol probably experience a special form of irritation, but that they only rarely develop allergic contact dermatitis. Other investigators believe that the incidence of allergic contact dermatitis to propylene glycol may be greater than 2% in patients with eczema.
Well that makes sense as I used to get eczema when I lived in Kansas. (I think it was due to the water and cold temps during the winter.)
I still don't see anything life threatening about these E-Cigs.