HALON 1211 is a liquified gas, pressurized with nitrogen, which discharges as a vapor causing no cold or static shock and no impairment of the operator's vision. This "CLEAN" agent quickly penetrates difficult to see and hard to reach areas and leaves no residue. It is recommended for protection of delicate, sensitive and expensive computers, electrical equipment, tapes and film, automotive and aircraft engines, laboratory chemicals and equipment. Quality industrial grade hardware, "CLEAN" agent, light weight, good discharge range and excellent fire extinguishing ability make these the preferred extinguishers for the computer, electronic, telephone, banking and aircraft industries.