Fire Extinguishers: 5 Fast Facts

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Fact #1. The first rudimentary fire extinguisher didn't appear until the Middle Ages. A device known as a squirt was used as a simple jet of water applied to the base of a fire. It functioned like a bicycle pump. The nozzle was dipped into water used to suck up the liquid with plunger-like action. The nozzle was then directed toward the base of a fire and used to eject the water.
Fact #2. The first automatic extinguisher was patented in 1723 by an English chemist. It consisted of a cask filled with an extinguishing agent and a pewter chamber of gunpowder connected to a series of fuses. Igniting the fuses caused the gunpowder to explode. This dispersed the extinguishing agent.
Fact #3. Fire extinguishers are handheld, cylindrical-shaped devices made from steel and typically red in color. Armed with one of several pressurized agents, they're designed to put out small blazes that erupt in the home or place of business. The particular agent chosen for the extinguisher depends on the type of environment in which it is to be used. It also depends on the class of fire it's designed to extinguish.
Fact #4. The three major categories include water, dry chemical, and carbon dioxide. Water types are the most common. They use compressed air as a propellant to remove a fire's heat source. Dry chemical models consist of a tank full of either foam or dry powder with compressed nitrogen as a propellant. Carbon dioxide units have a mix of CO2 in both its liquid and gaseous states.
Fact #5. Firefighters undergo extensive training with special equipment to combat fires and other hazards on a large scale. The lay person doesn't always have these things at their disposal. This is the primary reason why the fire extinguisher serves an important role for ordinary consumers and business owners.