The Foam Extinguisher is an all red cylinder with a blue band. Foam fire extinguishers can be used on Class A and B fires.
Fires involving solids and burning liquids, such as paint and petrol or diesel fires. But not suitable for chip or cooking oil fat pan fires..
They are most suited to extinguishing liquid fires such as petrol or diesel and are more versatile than water jet extinguishers because they can also be used on solids such as wood and paper.