on which principle ,the fire extinguisher works - Science - Combustion and Flame

Question

on which principle ,the fire extinguisher works

Animesh · Accepted Answer

Water extinguishers work by removing heat from the fire Dry
chemical extinguishers are tanks of foam or dry powder with
compressed nitrogen as the propellant They work by smothering the
fire: when you put a layer of powder or foam on the fire, you cut
the fuel off from the oxygen around it, and the fire goes out