Smoke contains ___ highly toxic products of combustion or physical states of matter:

Smoke contains three highly toxic products of combustion, which typically include carbon monoxide, hydrogen cyanide, and ammonia. Each of these products poses significant health risks to firefighters and others exposed to smoke.

Carbon monoxide is a colorless, odorless gas that can lead to asphyxiation and can displace oxygen in the bloodstream. Hydrogen cyanide is highly toxic and can result from the burning of certain plastics and synthetic materials; it interferes with the body’s ability to use oxygen, leading to severe health impacts or death. Ammonia, while less toxic than the first two, can still irritate the respiratory system and cause other health issues.

Understanding the composition of smoke is essential for fire service personnel, as it informs protective measures and strategies to minimize exposure during firefighting operations. Being aware of these toxic products helps in assessing the hazards and implementing necessary precautions, such as the use of proper respiratory protection.