During ventilation, the products of combustion are replaced with what?

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Prepare for the Edmonton Fire Rescue Services 159 Exam. Use flashcards and multiple choice questions, with hints and explanations. Ace your exam!

Multiple Choice

During ventilation, the products of combustion are replaced with what?

Explanation:
Ventilation aims to remove the hot, smoky products of combustion from the environment and replace them with cooler, fresh air. Introducing ambient air cools the space and dilutes toxic smoke, improving temperature, visibility, and conditions for anyone inside. Supplying pure oxygen isn’t how standard ventilation works, and warmer air would only keep the environment hotter. Creating a vacuum isn’t feasible in a live-fire scenario. So the air that replaces the products is cooler, fresh air.

Ventilation aims to remove the hot, smoky products of combustion from the environment and replace them with cooler, fresh air. Introducing ambient air cools the space and dilutes toxic smoke, improving temperature, visibility, and conditions for anyone inside. Supplying pure oxygen isn’t how standard ventilation works, and warmer air would only keep the environment hotter. Creating a vacuum isn’t feasible in a live-fire scenario. So the air that replaces the products is cooler, fresh air.

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