What part of the fire triangle is removed by a carbon dioxide extinguisher?

Oxygen - The fire triangle, consisting of heat, fuel and oxygen requires a combination of the three for continued pyrolysis. The fire tetrahedron is now being taught, adding a continued chemical reaction as research has shown that the combination of heat, fuel and oxygen actually facilitates a sustained chemical rection between these factors that promotes pyrolysis. CO2 displacec oxygen and thus removes that leg of the fire triangle or tetrahedron making it impossible ofr continued combustion. Oxygen - The fire triangle, consisting of heat, fuel and oxygen requires a combination of the three for continued pyrolysis. The fire tetrahedron is now being taught, adding a continued chemical reaction as research has shown that the combination of heat, fuel and oxygen actually facilitates a sustained chemical rection between these factors that promotes pyrolysis. CO2 displacec oxygen and thus removes that leg of the fire triangle or tetrahedron making it impossible ofr continued combustion.