Portable DCP type fire extinguishers with ABC type powder are ideal to fight A,B,C type fires. ABC powder consists of Mono-ammonium Phosphate. At the time of fire when powder is thrown on fire, mono-ammonium phosphate gets heated and it releases the water, thus it give the cooling effect and extinguish the A class of fire.Similarly, dry powder given blanketing effect to fire and extinguish B and C class of fire.