What is inside a fire extinguisher?
There are a variety of different types of fire extinguishers that are use different materials to combat fires. The contents of a fire extinguisher depends on the types of fires it is designed to extinguish.Types of FiresAccording to the U.S. Fire Administration, there are five classes of fires. Class A fires burn typical flammables, Class B involve flammable liquids or gasses, Class C involve electrical equipment, Class D are combustible metals and Class K are cooking oils or other kitchen fires.Water and FoamWater fire extinguishers are designed for use only on Class A fires. Foam fire extinguishers can be used on Class A and B fires. Due to the threat of electric shock, these extinguishers should not be used on Class C fires.Carbon DioxideCarbon dioxide extinguishers are best used on Class B and C fires.Dry ChemicalMultipurpose dry chemical fire extinguishers are the most commonly used and are effective against Class A, B and C fires. Common A-B-C fire extinguishers use ammonium phos
