Problem to be solved

Extinction of fire (fire-fighting)

A. Principle

1) Prevent from contact with oxygen (to avoid oxidation).

2) Cool down (to lower under the firing point).

3) Remove things that may be burned (to remove oxidized substance).

B. Use of a principle

1) Cover with substances to prevent oxidation action such as carbon dioxide (CO₂).

2) Splash water on the burning objects.

3) Leave the burning objects away.

C. Ways of its use

1) Fire extinguisher―including other principles to spray CO₂.

2) Fire fighting pumps―including other principles of pumping.

3) Tobacco firefighter: A type to separate the burning portion off.