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Second
hand cigarette smoke is a mixture of
mainstream and sidestream smoke. It contains
the same toxicants as mainstream smoke, but at reduced levels. It is
responsible for about 8% of the deaths caused by direct smoking.
Second
hand mist from an e-cigarette
is not smoke at all, and does not contain any substance known to
cause death, short or long term, in the quantities found. It becomes invisible
within a few seconds, and is not detectable by smell.
Exhaled breath after e-cigarette use
has been tested for CO only. No increase in CO was found.
The e-cigarette does not create side-stream
smoke.
Exhaled breath after e-smoking contains
even less nicotine per puff, as much of the nicotine inhaled is absorbed.
Similarly, propylene glycol is largely absorbed and little is exhaled.
No
harm found in e-cigarette mist
Nicotine is not harmful in the
quantities mentioned.1
Propylene glycol is harmless –
it is used in making theatrical fog and as an ingredient in soaps,
personal lubricants and intravenous medicines.
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1. Murray
RP, Bailey WC, Daniels K. et al. Safety of nicotine polacrilex
gum used by 3,094 participants in the Lung Health Study. LHS Research
Group. Chest 1996; 102: 438-45.
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