Smoke
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- For other uses, see Smoke (disambiguation).
Smoke is a suspension in air of small particles resulting from incomplete combustion of a fuel. It is commonly an unwanted by-product of fires (including in stoves, lamp) and fireplaces, but may also be used for pest control, communication (smoke signals) or inhalation. Smoke sometimes also is a component of internal combustion engine exhaust gas, particularly diesel exhaust.
Smoke inhalation is a the primary cause of death in victims of indoor fires. The smoke kills by a combination of thermal damage and poisoning and pulmonary irritation caused by carbon monoxide, cyanide and other combustion products.