Encouraging users to prefer low voltage vaping is the way to go.I don't understand why these people with poor scientific and comprehensions skills are misleading people.
More details of the study.
[url. nejm.org/doi/full/10.1056/NEJMc1413069
Here we present results of an analysis of commercial e-liquid vaporized with the use of a “tank system” e-cigarette featuring a variable-voltage battery. The aerosolized liquid was collected in an NMR spectroscopy tube (10...
Dr F :laugh: claims the study was made using overheated ecig.I don't see how he came to that conclusion .
Seems there is lot of posturing done by people who knows very little about science.
From The study appearing in university website:
Portland State Enrollment Management & Student Affairs: Center for Student Health and Counseling (SHAC) | News
Peyton said there is no way to avoid sucking in the formaldehyde-releasing agents, which could release formaldehyde in the lungs or...
Not having read what kind of junk the study was supposed to be but got curious enough to google the odor threshold limit.
Got several hits suggesting 0.8 ppm is not accurate.
Identifying an indoor air exposure limit for formaldehyde considering both irritation and cancer hazards
There are...
113.74 mcg/10ml is 0.0113 mg/ml which is 0.011 ppm and not alarming.It is the same as the limit for arsenic set for drinking water.
It is not necessary that vape temperatures be higher to transfer solids.A considerable amount of Solid transfer, mostly occurs via carry over of mist(The vapor...
Here it is Subchronic nose-only inhalation study of p... [Food Chem Toxicol. 1989] - PubMed - NCBI
Exposure to the above concentrations of propylene glycol caused nasal haemorrhage (I.e bleeding) and ocular discharge in a high proportion of animals, possibly as a result of dehydration of the...
If one can do with just a couple of cigarettes (per day) one can skip the complicated and laborious ehookahs :laugh:
Studies show inhaled PG can cause Nose bleeds and it has nothing to do with sensitivity on skin .
To the Op,
If nose bleeds happen then the culprit is PG.If you want to give another try the eliquid should be made up with mostly Vg.I would go with following ratio.
vg 75
pg 10
water 15
nicotine 12 mg and/or 18 mg.
vaporgod has ready made mixes for that ratio. Link
I read the article in detail and some more(Because the linked organisation represents primarily chemical industry business aspects).
Formaldehyde content in ecig vapor is considerably less than in regular cigarettes.
I was responding to your assertion and cheeky comment (reproduced below)...
It is not the same.Formaledyde in lungs is problematic(If indeed ecig vapor has appreciable formaldyde formation). One wouldn't make a leap that stomach has acid (Hcl) and hence it is ok to have it in lungs or blood.
Ofcourse there are No studies that can pass scientific scrutiny. There are a couple of incompetent people who made some half baked studies proving nothing other than repeating what we already know or make some ridiculous conclusions blissfully unaware of their incompetence.
Propylene glycol and vegetable glycerine (Glycerol) are NOT toxic per se .Propylene glycol's deleterious effect on lung and nasal tissue was documented .It dries lung tissue and causes inflammation.
vegetable glycerin causes much less lung(and nasal) tissue irritation but It serves as nutrient...
Guess I was not paying much attention. It seems one particular oral probiotic strain is not effected by PG (1-2 propane diol) as per this . It may be prudent to stop vaping at least 15 minutes during usage of lozenge to allow the bacteria to take root ;) .
PG microbiocidal action is limited to Air, for all practical purposes. It is unlikely to cause any killing of bacteria in your gut(Where the probiotics are intended to work).
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