Different extinguishers
do different jobs
Fire blankets – suppress a fire, removing the oxygen.
AFFF Foam – cools the fire down and removes heat. Foam also starves the fire of oxygen by smothering the flames.
Dry Powder – extinguishes the fire by smothering flames and a chemical reaction.
Water – cools the fire down and removes heat.
Carbon dioxide – cools the fire down and removes heat.