Karbonmonoksidforbrenningseksplosjon

Carbon monoxide has an explosive range of 12.5% til 74.2%, which pertains to its volume fraction in an enclosed space.

I slike miljøer, once the carbon monoxide and air mixture hits this specific ratio, it will ignite explosively when exposed to an open flame. Under 12.5%, the fuel is too scant, and the abundance of air leads to rapid consumption through combustion.