Effective against B and C class fires Leaves no residue—safe for use in computer/data storage areas Won't cause thermal shock to electrical equipment B: Flammable liquids—gasoline, kerosene, oil, grease, solvents and paint; C: Live electrical equipment—motors, computers, wiring and appliances (requires a nonconductive extinguishing agent). Features corrosion-resistant paint finish, steel cylinders, power cone discharge system and wall mount hangers. OSHA/USCG/EPA Approved; acceptable alternative to Halon 1211; more effective and user-friendly than water or carbon dioxide extinguishers. UL/ANSI Listed. Fire Extinguisher Type: Rechargeable; Material(s): Steel Cylinder; Fire Class: B: Flammable Liquids, C: Live Electrical Equipment; UL Rating: 5-B:C.