What Is A Fire Extinguisher?

A fire extinguisher is a cylindrical shaped device that is used to spray a substance on small to medium fires in order to deprive the fire of oxygen and extinguish it. It is often used in emergency situations to put out small fires but it is not ideal for use in out-of-control fires. It is an essential piece of gear that should be present in every structure – whether a house or an office building.

Different Types Of Fire Extinguishers & Their Uses

As mentioned above in the definition, fire extinguishers contain a chemical substance that can disturb the flame. This substance can vary in different fire extinguishers, according to the fires that they can put out. There are 4 basic types or classes of fire extinguishers:

Class A

– these can extinguish flames with basic fires on wood or paper

Class B

– fires started by grease, oil, or petrol need a Class B extinguisher

Class C

– these are for electrical fires

Class D

– flammable metal fires require a special Class D extinguisher

Aside from these, there are multi-purpose fire extinguishers that can be used to put out more types of fire than one. Each fire extinguisher has the class displayed on it and you should take note of it when purchasing one.

Steps Of Using A Fire Extinguisher:

If you see a fire erupt, the first thing you need to do is remain calm and find the closest fire extinguisher and remember this acronym P A S S. Here is what each letter stands for:

P – there is a pin at the top of every fire extinguisher keeping the spray mechanism in place. You need to Pull this pin, that is the first step in using the extinguisher.

A – now you need to Aim the nozzle of the extinguisher at the base of the fire. If you don’t aim properly, the fire will be unaffected so be very careful with the nozzle.

S – once the nozzle is aimed properly, squeeze the lever at the back of the top half of the extinguisher to spray the substance at the fire. Be sure to keep the proper distance from the fire.

S – you will need to Sweep the spray side-to-side at the fire’s base. Keep repeating the motion and squeezing the lever until the fire is out.

Monitor the area for a few minutes and make sure that the fire doesn’t re-ignite. If it does, repeat the process outlined above.