effects of pg on lungs.

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Jeremy Evans

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Well compared to non polluted fresh air sure it's not, but this ain't space balls you can't buy canned air. Compared to smoking I will gladly vape food grade materials versus known poisons and toxic materials.

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Not one to argue but yes you can, china and japan now have trust us into the space ball era, glad that my schwartz is strong
 

Faylool

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I vape 70/30 pg/VG and I've always had more than average nose and throat mucus but I'd say it definitely hasn't improved that situation. I also tend to cough more, blow nose etc but it's mainly just me and my mild asthma sensitivities plus seems to be exacerbated by vaping. Nothing compared to smoke.
 

Thucydides

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A small percentage of people have allergies or reactions to PG, but they are mild (as opposed to health-threatening) and go away quickly; there are no know chronic (long lasting) reactions to PG, so that in the unlikely even that you do have a reaction it will go away shortly after you stop using it.

The EPA approved PG for use in air conditioning systems and air purifiers in the 1950s, and recently (2006) released a paper reviewing it's previous approval, in which it states "there are no endpoints of concern for oral, dermal, or inhalation exposure" five separate times.

The paper states that acute (i.e., non-chronic) toxicity symptoms in rats occur when they orally ingest more than 3,600 to 20,000 mg of PG per pound of body weight(!). In rabbits, the lower limit is 10,000mg of PG per pound of body weight.

Here's a summary for that paper that I wrote up (it contains a link to the full EPA paper at the end): http://www.e-cigarette-forum.com/fo.../367917-safety-inhaling-propylene-glycol.html.
 
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Thucydides

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what is pg and vg? lol

sorry im a noob.

PG can be made one of two ways: (a) it can be derived from petrochemical hydrocarbons, specifically propylene oxide which is heated to high temperatures, and (b) it can be converted from vegetable glycerine using a similar method. Most propylene glycol is derived from petrochemicals; the purity and chemical structures are identical regardless of the method of production.

VG is derived from vegetable oil, usually by heating coconut or palm oil under pressure in a water-based solution, which breaks the glycerine apart from the fatty acids, so that they dissolve into the water. The vegetable glycerine is then distilled from the water.
 

DJ RyckRak

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I, for one think the PG is actually good for you !
I saw a very small study where they had mice in a container and had them breath air infused with PG. Then they piped in virus air.... None of the mice got the virus.
Mice in another container who did not get the PG air first- All of the mice got the virus.

I, personally believe I now breath so much better- no coughing, hacking, sleeping better- deeper breathing, using a 50/50 mix most of the time...that it's nothing to 'fret' over.
 

Calveezzzy

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Even though I don't have a lot of experience at all with vg and pg, I would assume vg would be better for you since it's made from vegetable oil, while pg is made from petrol which is similar to the same oil used to make gas or Vasoline which both aren't good for consumption.

Of course, like I said, I don't have any experience and this is all from reading so please don't flame me. :(
 

StormFinch

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PG is being used as the carrier for breathing treatments used by lung transplant patients. It has also been used as an ingredient in asthma inhalers and additives for humidifiers used to relieve children's cold symptoms. It's been piped into rooms of rats, monkeys and children for testing of it's anti-microbial properties. It and/or VG are the main ingredients beside water used in fog machines. So far, no one exposed to theatrical fog long term has reported any adverse effects besides some irritation of the air passages.

I had a chest x-ray the end of November before a surgery date. As of that date, I had been vaping for 2 years and 8 months. My x-ray was clear. My other tests also came back normal.

Cigarettes are made with dozens of flavored oils which are then burned and inhaled.

Until there are more studies, if the FDA leaves us with enough room to complete them, these and anything I may have forgotten are the only reassurances we'll get. If the inhalation of PG and VG still bothers anyone, snus have a decade of medical study behind them and are another reduced risk option to quit smoking.
 

Thucydides

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Even though I don't have a lot of experience at all with vg and pg, I would assume vg would be better for you since it's made from vegetable oil, while pg is made from petrol which is similar to the same oil used to make gas or Vasoline which both aren't good for consumption.

The idea that VG is better because it's made from vegetable oil is attractive on some level, but you can derive any number of poisons from everyday foods given enough processing and you can derive healthy extracts from otherwise unhealthy substances given enough treatment.

Is natural better? Not always. Malaria is natural, too, you know.
 
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Thucydides

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bigger concern for me is vaping the liquids that can crack tanks

Ketchup and marina sauce will both eat away the smooth linings of plastic containers like Tupperware or Rubbermaid. It's not clear to me that you can gain any insight at all regarding the health impact of something based on its interaction with inorganic materials.
 
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