An alternative to water and dry chemical extinguishers for Class A and B fires is a foam extinguisher. Removing the heat and oxygen from the fire also helps to prevent re-ignition. ... Foam extinguishers can be used where flammable liquids are transported, processed, stored or used as an energy source.

Why would you use a foam fire extinguisher?

What is a foam fire extinguisher used for. AFFF (Aqueous Film Forming Foams) Foam Fire Extinguishers are suitable to fight burning solids such as wood as well as liquid fires such as burning petrol. The foam has the ability to creep over the burning liquid or to soak into burning materials such as settees.

What fire is foam used for?

Foam fire extinguishers are suitable for use on class A and class B fires but but are used in different ways depending on the type of fire they are being used on. Please note that foam extinguishers should only be used on or near live electrical equipment if they are di-electrically tested.