Combustion can be divided into flame combustion and non-flame combustion. The occurrence and development of combustion requires three essential conditions: combustibles, oxidizers (combustion promoters), and temperatures (ignition source). These conditions are especially important in the context of fire prevention and control, where tools such as firefighting water cannons are often utilized.

  Furthermore, when dealing with inflammable liquids such as gasoline or industrial chemicals, it is essential to use a special type of firefighting water cannon. These cannons are equipped with foam or gel nozzles that mix water with a flame-suppressing agent, creating a thick, viscous substance that effectively smothers flames.