Water Mist Fire Extinguishers (AC) should be used when you are trying to put out a class A fire with a potential for a class C fire. The nozzle sprays mist in a way that should not be harmful if there is a presence of electrical.
Water Fire Extinguisher (A), not to be confused with Water Mist Fire Extinguishers, are best used on class A fires. They work by releasing a water stream of up to 55 feet to soak your fire.
Class D Fire Extinguishers (D) are created to extinguish fires which involve materials that may be flammable. This type of fire extinguisher, also known as a Dry Powder Extinguisher, is not effective on other types of fires.
Wet Chemical Extinguishers (K) are best used in a restaurant kitchen environment.
Carbon Dioxide Extinguishers (BC) work by smothering fire with a layer of carbon dioxide which removes the oxygen from the fire. Carbon dioxide is a clean chemical. It is also odorless.
