What class of fire leaves an ash?

The class of fire that leaves an ash is classified as an Alpha fire. Alpha fires are characterized by the combustion of ordinary materials such as wood, paper, cloth, and many types of plastics. When these materials burn, they typically leave behind ash as a byproduct.

This characteristic distinguishes Alpha fires from other fire classes. For instance, Bravo fires involve flammable liquids and gases, such as gasoline or oil, which do not produce ash when burned. Charlie fires are associated with electrical equipment and components, while Delta fires involve reactive metals, which can burn without producing ash as a residue.

Understanding the material that fuels each class of fire can help in effectively managing and combating those fires while ensuring safety protocols are observed.