Over the years foam fire extinguishers have evolved into a more efficient type of fire extinguisher.

The original foam extinguisher was once filled with a thick and smelly substance based on animal protein, these days a more advanced solution of aqueous film foaming foam (AFFF) is used.

You will find all the information you need on Foam fire extinguishers in the following article.

Foam Fire Extinguisher – What Colour Band?

Foam fire extinguishers come in an all red cylinder with a blue band running around the top.

When To Use A Foam Fire Extinguisher?

It is recommended to use a foam fire extinguisher for class A and class B fires.

Fires that are categorised as class A involve flammable solids such as rubber, wood, paper and textile materials, where as class B fires involve flammable liquids such as kerosene or petrol.

Foam fire extinguishers are extremely popular in environments such as warehouses, textile factories, storage facilities, petrol stations and workshops as they are more likely to contain combustible materials or flammable liquids.

It is NOT advised to use a foam fire extinguisher for class F fires or in other words fires involving fats and oils as they have proven to be ineffective, for safety reasons it is suggested that a foam extinguisher is paired with a wet chemical fire extinguisher.

To learn more about the different types of fires and fire extinguishers please refer to this detailed chart.

Foam Fire Extinguisher

How Does A Foam Fire Extinguisher Work?

There are 3 key elements a fire requires to flourish. They are heat, fuel and oxygen. All fire extinguishers work by removing one or more of these 3 key elements.

Foam fire extinguishers smother a fire using a thick foam solution therefore removing the element of oxygen and extinguishing the fire.  The blanket of foam also contains traces of water which provides a cooling effect and reduces the risk of the fire reigniting.

Class F Fire

Advantages Of A Foam Fire Extinguisher

  • Foam Fire Extinguishers are extremely cost-effective
  • Refillable and easy to maintain
  • Lightweight which makes it portable and easy to use
  • Can be used on multiple classes of fire (class A and class B)
  • Non-toxic
Foam Fire Extinguisher Sign

Disadvantages Of A Foam Fire Extinguisher

  • Clean up required after use
  • Possibility of freezing in conditions lower than -10°C
  • Not recommended for use on class C, D, E and F fires

How To Use Foam Fire Extinguishers?

There are 4 simple steps required to operate your foam fire extinguisher. This is known as the PASS technique.

This process is universal for all fire extinguishers on the market.

The PASS technique is as follows…

  • Pull the Pin
  • Aim it at the fire.
  • Squeeze the handle.
  • Sweep from side to side.
PASS - Fire Extinguisher

In the event of a fire in your workplace or home it is important to remember that all fire extinguishers are only designed to battle small fires.  If the fire becomes to large or dangerous it is imperative that all individuals evacuate the area and call the fire brigade.

Additional Tips

  • It is important to have every fire extinguisher correctly installed, please refer to this detailed article for more information.
  • A fire blanket is also recommended for use on class A fire’s.
  • DO NOT use foam fire extinguishers on electrical fires as the foam solution contains water. As water is a conductor of electricity it could cause the fire to spread.

For our detailed articles on other types of fire extinguishers click one of the below links:

We offer the highest quality foam fire extinguishers at extremely cheap prices. You can check out our complete range or buy our extinguishers by clicking the image below.

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