Question

What are foam fire extinguishers ???

Answer 1

foam fire extinguishers

Firstly, they are mainly water-based and so have the same cooling effect as water extinguishers, putting the fire out by lowering the temperature.

Secondly, they contain ‘Aqueous Film Forming Foam’ (this is why they are also known as AFFF foam extinguishers).

AFFF works by smothering the fire and sealing in the flammable vapours. This prevents the fire re-igniting. It also allows foam fire extinguishers to put out flammable liquid fires, by creating a barrier between the liquid’s surface and the flames.

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Answer 2

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.

Carbon dioxide extinguishers do not leave any residue, unlike a foam extinguisher. They can also be used on Class B fires, those involving flammable liquids such paraffin or petrol. CO2 extinguishers work by smothering the fire and cutting off the supply of air.

Foam fire extinguishers are the ideal extinguishers for premises with multiple fire risks, such as:

• Offices

• Warehouses

• Factories

• Garages

• Hotels

In fact, most premises benefit from having foam extinguishers and these are frequently recommended, especially when paired with CO2 extinguishers for use on electrical fires.

hope this helps u