Distinguishing Common Fire Extinguishers

7/24/2018 (Permalink)

Fire extinguishers are a standard household item. However, not all extinguishers are made equally. Many different kinds of extinguishers are made to fight specific classes of fire. Here is a list and description of common fire extinguishers.
Water: Water extinguishers are used on Class A fires, that start when ordinary combustibles like wood and paper ignite. It is best not to use water extinguishers on electrical fires, as the water can damage the appliance.
AFFF Foam: This type of fire extinguisher is highly effective on class A and B fires. When extinguishing a class B fire that involves gasoline, the foam helps to prevent reignition. Some of these extinguishers may be used on or near electrical appliances, check to see if the extinguisher has been dielectrically tested before use on electrical equipment.
Carbon Dioxide (CO2): This extinguisher can be used on class B fires or class F fires. This extinguisher works by cutting off the oxygen supply to the fire and does not leave residue behind.
ABC Powder: This type of extinguisher is versatile across classes A, B, C, and electrical fires. However, it is recommended not to use ABC Powder in a small or confined room due to the risk of inhalation.
Water Mist: Water mist extinguishers are used to put out A, B, C, F, and electrical fires. "The unique design of the water mist extinguishers' supersonic nozzle creates a microscopic mist curtain, reducing the oxygen content. Water mist extinguishers are also safe on fires caused by electricity, as the water mist does not conduct electricity and the water mist does not form puddles which could lead to electrocution" (Safelincs, 2018).
Wet Chemical: Wet Chemical fire extinguishers are specifically designed to put out class F fires that involve cooking oil and fats. Some of these extinguishers may be used on class A fires as well.
If you or anyone you know is having a fire emergency call SERVPRO of Port Jefferson for immediate emergency services. Staying safe and staying educated on fire safety can help you keep yourself, your family, and your home safe.