Foam-Based Fire Extinguishers are fire suppression devices that are adaptable and intended to suppress fires that involve combustible solids and flammable liquids. They are a favoured option for environments that are susceptible to Class A and Class B fires. The chemical that generates a foam blanket to suppress fires and prevent re-ignition, which is appropriate for Class A fires: Combustibles, including wood, paper, textiles, and plastics, Class B Fires: Liquids that are flammable, such as petrol, oil, diesel, and alcohol.