Class A- Water, Foam, Dry Powder, and CO2 Extinguishers.
Class B- Foam, Dry Powder, and CO2 Extinguishers.
Class C- Dry Powder, or CO2 Extinguishers.
Class D- Dry Powder or CO2 Extinguishers.
Class K- CO2 Extinguishers.
-There are also special powders for Class D metal fires.
-CO2 extinguishers have no "Post Fire Security" and the fire could re-ignite.
