Halon is a colorless liquefied gas, with a sweet odor, shipped under pressure. The main acute health hazard associated with release of this gas is asphyxiation by displacement of oxygen. This gas is heavier than air and will sink into low areas, creating an asphyxiation hazard. The main chronic health hazard associated with release of this gas is possible adverse effects to the central nervous system and possible cardiac sensitization and arrhythmias. Chronic skin exposure may cause dermatitis. This gas is not flammable