EVERSAFE Stored Pressure Portable Dry Powder Fire Extinguisher is combination of well designed and manufactured hardware with the rigid quality controlled dry chemical powder which makes it an economical investment for your fire protection. ABC Dry Powder Fire Extinguishers are effective on all types of fires-class A, B, C, and electrical fires. Our dry powder agents mono ammonium phosphate and ammonium sulfate based, are non-conductors of electricity. When discharged, the heat from the fire is greatly reduced. Firstly, because a cloud of powder provides an effective heat-shield. Secondly, because there is an immediate knockdown of the flames. Hence, the flames are suffocated and any embers are extinguished by a layer of melted powder.