According to How Stuff Works, fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the blaze. Fires need oxygen, fuel, and heat to ignite, and removing any one of those three components can put out a fire. Carbon dioxide extinguishers work because carbon dioxide molecules are heavier than oxygen molecules.
As Fire needs oxygen to burn, Carbon Dioxide Covers the fire like an blanket and cuts the contact of fire to the oxygen present in the air, So Fire stops burning. That is why Carbon Dioxide is Considere as the best Fire Extinguisher.
Why Is Carbon Dioxide Used in Fire Extinguishers? | eHow
Among its many uses, CO2 has the ability to put out flames and is therefore used as the extinguishing agent in both portable and fixed-installation fire extinguishers. An examination of its properties and uses shows why it’s a popular choice for suppression of most, but not all, types of fire.
So sometimes carbon dioxide fire extinguishers are used because they separate oxygen from the fire. As CO2 can also react with some chemicals, so fires in a lab are usually tackles with liquid nitrogen, which is non-flammable, separates oxygen from the …
People Also Ask why is co2 used in fire extinguishers
What do you need to know about CO2 fire extinguishers?
There are 8 main kinds of fire extinguishers:Water and Foam fire extinguishers operate by removing the necessary heat element from the fire triangle. …CO2 fire extinguishers remove both the oxygen element and the heat element from the fire triangle. …Dry Chemical fire extinguishers are the typical ABC extinguishers that most people are familiar with. …
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What is the use of carbon dioxide in a fire extinguisher?
Carbon dioxide extinguishes fire by displacing the air that supplies oxygen for combustion. Its normal uses are Class B (flammable liquids) and Class C (electrical ) fires. Carbon dioxide also is used to a lesser extent on Class A (textile, wood, and paper) fires.
How do you inspect a CO2 fire extinguisher?
Visually inspecting your fire extinguishers helps ensure several important points:The extinguisher is still present in its designated locationNo damage has occurred to the equipmentNo obstructions are blocking the equipment from view or from easy accessThe extinguisher is fully charged and operational
What fire extinguisher should I buy for my home?
Supply one fire extinguisher for each level of your home, spaced no farther than 40-feet apart. The recommended classes and ratings are 2-A, 10-B and C.For kitchens and vehicles, the recommended classes and rating are 10-B and C.For garages, workshops, home theaters and offices, the recommended classes and ratings are 3-A, 40-B and C.
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why Carbon dioxide is used in fire extinguisher? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher