Does exhaled vapor contain nic?
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I do not believe that the exhaled vapor contains any nicotine, but I just posted a thread on vaping near birds. They have hyper-sensitive respiratory systems and I don't think that smoking analogs or vaping right next to them is the smartest thing to do.
Since the liquid is made of water, VG or PG and nicotine (probably in that order), the exhalations *may* contain exceptionally minute amounts of nicotine. I wonder if this has been measured or if it even can be measured?
What makes you ask?
Since the liquid is made of water, VG or PG and nicotine (probably in that order), the exhalations *may* contain exceptionally minute amounts of nicotine. I wonder if this has been measured or if it even can be measured?
What makes you ask?
Back on Page 4 is this thread:
http://www.e-cigarette-forum.com/fo...exhale-does-vapor-still-contain-nicotine.html
http://www.e-cigarette-forum.com/fo...exhale-does-vapor-still-contain-nicotine.html
This was posted to an earlier thread asking the same question. The answer came from ECF member Malyden:
Here's a link to the Ruyan study done in New Zealand - quote is from page 21
http://www.healthnz.co.nz/RuyanCartr...t30-Oct-08.pdf
Quote:
5. Safety of Ruyan® e-cigarette ‘smoke’ for bystanders.
Method. Analysis of published data on nicotine absorption, and informal comments of
bystanders, and observation of e-cigarette smoking indoors.
Results. Cigarette smoke is a mixture of sidestream smoke and exhaled mainstream
smoke. In constrast, the e-cigarette generates no sidestream smoke from its (artificially
lit) tip. Any exhaled PG mist visibly dissipates to vapor within seconds. Non-smoking
bystanders do not find the mist unpleasant. The mist is odorless, and those close by
quickly realize it does not have the odor of smoke or the irritating quality of tobacco
cigarette smoke.
Comments. Inhaled nicotine in cigarette smoke is over 98% absorbed 6, and so the
exhaled mist of the e-cigarette is composed of propylene glycol, and probably contains
almost no nicotine; and no CO. (see Figure 3.5) Lacking any active ingredient or any
gaseous products of combustion, the PG mist or ‘smoke’ is not harmful to bystanders.
The ‘smoke’ or mist is not tobacco smoke, and not from combustion – no flame is lit –
and is not defined as environmental tobacco smoke. E-cigarette “smoking” would be
permitted under New Zealand’s Smoke-free Environments Act 1990.33
32
__________________
Here's a link to the Ruyan study done in New Zealand - quote is from page 21
http://www.healthnz.co.nz/RuyanCartr...t30-Oct-08.pdf
Quote:
5. Safety of Ruyan® e-cigarette ‘smoke’ for bystanders.
Method. Analysis of published data on nicotine absorption, and informal comments of
bystanders, and observation of e-cigarette smoking indoors.
Results. Cigarette smoke is a mixture of sidestream smoke and exhaled mainstream
smoke. In constrast, the e-cigarette generates no sidestream smoke from its (artificially
lit) tip. Any exhaled PG mist visibly dissipates to vapor within seconds. Non-smoking
bystanders do not find the mist unpleasant. The mist is odorless, and those close by
quickly realize it does not have the odor of smoke or the irritating quality of tobacco
cigarette smoke.
Comments. Inhaled nicotine in cigarette smoke is over 98% absorbed 6, and so the
exhaled mist of the e-cigarette is composed of propylene glycol, and probably contains
almost no nicotine; and no CO. (see Figure 3.5) Lacking any active ingredient or any
gaseous products of combustion, the PG mist or ‘smoke’ is not harmful to bystanders.
The ‘smoke’ or mist is not tobacco smoke, and not from combustion – no flame is lit –
and is not defined as environmental tobacco smoke. E-cigarette “smoking” would be
permitted under New Zealand’s Smoke-free Environments Act 1990.33
32
__________________
Just because nicotine absorption from cigarette smoke is 98% doesn't mean it will be that way for e-cig vapor. There are supposedly chemicals in processed tobacco that help with nicotine absorption. But still, if someone is worried about a little bit of nicotine from second hand vapor then they should be living in a bubble.
Just don't blow it in their face and they have nothing to complain about.
Just don't blow it in their face and they have nothing to complain about.
Just FTR, water is added to thin VG, and the general recommendation is 80% VG to 20% distilled water. In an all or mostly PG liquid, there's probably no water at all.
our own experts here have done some preliminary tests and shown that anywhere from 30-60% of the nic in a 'puff' can be exhaled if you're doing well, puffing. Probably much less for a complete inhale.
bedtime reading:http://www.e-cigarette-forum.com/fo...otine-destroyed-during-vaping.html#post779002
TTRP
bedtime reading:http://www.e-cigarette-forum.com/fo...otine-destroyed-during-vaping.html#post779002
TTRP
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