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Exhaust |
A concept to broadly cover all physical byproducts of Combustion, other than light or heat. While exhaust is often an undesirable byproduct of combustion that serves some particular purpose, and where heat or light is desired, there is also the case of smoke signals or mosquito-repelling smudge pots in which exhaust (and often ineffecient combustion, to produce the most smoke) is the desirable output of combustion. Exhaust differs from Smoke in that it need not be visible.
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