How Do Fire Extinguishers Put Out Fires?

Water extinguishers put out fires by removing the heat from the fire.

Water Fire Extinguishers

Pressurized oxygen directs the fire from the extinguisher. Water is only effective on basic combustibles, such as wood and paper.

Water extinguishers put out fires by removing the heat from the fire. Pressurized oxygen directs the fire from the extinguisher. Water is only effective on basic combustibles, such as wood and paper.

Dry Chemical Extinguishers

Dry chemical extinguishers are filled with foam or powder, generally, sodium bicarbonate or potassium bicarbonate. The bicarbonate smothers the fire and deprives it of oxygen. Chemical extinguishers are usually pressurized with nitrogen.

Carbon Dioxide Extinguishers

CO2 extinguishers work in two ways to extinguish fires. CO2 is a very cold gas and it quickly reduces the heat of the fire (fires need fuel, heat and oxygen to burn). Additionally, CO2 is a heavier gas than oxygen and its presence displaces the oxygen.

About the Author

Michael Kozlowski began writing in 2006 and has published fiction in Eternal Press, "The Monsters Next Door" and "Scarlett Literary Magazine." He also has a novel-length travel memoir distributed through ecapeartist.com. He spent many years in the manufacturing and construction trades, traveling extensively. Kozlowski attended Wayne State University for graphic design and fine art.