The Water and Foam extinguisher eliminates a fire by allowing water to take away the heat component of a fire while foam separates oxygen from the fire. A water extinguisher should only be used on Class A fires (Combustibles such as wood, paper, cloth, trash, and plastics).
The foam extinguisher can only be used on Class A and Class B fires only. If used on Class C fires, it will create a shock hazard.
