A guide to dry powder fire extinguishers

A dry powder (or powder) fire extinguisher is multi-purpose and can be used on Class A, B and C fires. That’s why they’re also known as ABC extinguishers. A powder fire extinguisher is ideally placed in garage forecourts, commercial boiler rooms and large workshops. In this helpful guide, we take a look at how a powder fire extinguisher works and detail all the need-to-know information about this versatile piece of fire safety equipment.

Which type of fire should a powder fire extinguisher be used on?
This extinguisher is suitable for Class A (flammable solids), B (flammable liquids) and C (flammable gases) fires. It can also be used on electrical fires involving electrical equipment under 1000v. Never use powder extinguishers for fires involving cooking oil or electrical equipment over 1000v.

How does a powder fire extinguisher work?
The agent forms a ‘blanket’ over the fire and this thick barrier starves it of oxygen and helps prevent the fire reigniting.

How is a powder fire extinguisher identified?
A blue-coloured label stating ‘Powder’ clearly identifies this extinguisher.

Where is a powder fire extinguisher most suitable for use?
Spaces that benefit from having a powder extinguisher on site include workshops, garage forecourts and construction sites. Because it’s suitable for fires involving flammable liquids and gases, this extinguisher is also recommended for all vehicles, including fuel tankers. This type of extinguisher isn’t suitable for enclosed spaces due to the fact the powder can easily be inhaled and the residue left behind can be difficult to clean up.

Want to know more about this versatile unit? Browse powder fire extinguishers now.

The content of the CheckFire blog is for general information purposes only. While we make every effort to ensure accuracy at the time of publication, under no circumstances should it be considered professional advice. Any reliance you place on the information is at your own risk. Always seek the advice of a fire professional for your particular circumstances and requirements.
  • by Toria Jones

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