👉 A firedog is a type of fire extinguisher that is used to cool down an area or object in case of a fire. It consists of a cylinder with two sides, one containing a liquid and the other containing a dry powder. The liquid part of the fire extinguisher can be used as a water-based extinguisher while the dry powder can be used as an aerosol extinguisher. Fires that are caused by flammable gases or liquids should be used on fire extinguishers like these to