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Mainstream Smoke

By , About.com Guide

Updated March 29, 2013

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 Mainstream Smoke

Mainstream smoke is residual cigarette smoke exhaled by smokers.

Photo © Stockxpert
Definition:
Mainstream smoke is the exhaled smoke released after taking a puff on a lit cigarette.

The composition of mainstream smoke is affected by how the smoker inhales and exhales, so it will vary from person to person. The frequency of puffs, duration and volume all contribute to the chemical makeup of mainstream smoke.

See Also:
Secondhand Smoke Facts

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