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Firefighter, sometimes called a fireman, is a person who is trained and equipped to put out fires, rescue people and in some areas provide emergency medical services. The fire service, also known as the fire brigade or fire department in some countries, is one of the emergency services.

Firefighting is the process and profession of extinguishing fires. Firefighting is important in urban areas where firefighters are on constant standby; in wildland areas, and on board ship.

Prevention

Prevention attempts to ensure that no place simultaneously has sufficient heat, fuel and air to allow ignition and combustion. Most prevention programs are directed at controlling the energy of activation (heat). Fire suppression sprinkler systems have a proven record for controlling and extinguishing unwanted fires. Many fire officials recommend that every building, including residences, have sprinklers. Correctly working sprinklers in a residence greatly reduce the risk of death from a fire. With the small rooms typical of a residence, one or two sprinklers can cover most rooms.

Self-preservation

Self-preservation is critical. The basic technique firefighters use is to know where they are, and to avoid hazards. Current standards in the United States require that firefighters work in teams, using two-in, two-out whenever in an IDLH (Immediately Dangerous to Life or Health) environment. Tools are generally carried at all times, and a special device called a PASS device is commonly worn to alert others when a firefighter stops moving for a specified period of time. In the United States, the National Fire Protection Agency (NFPA) sets a number of standards for firefighters. These standards may be adopted as law by state or local governments, or enforced by the firefighting organizations on their own.

Rescue

Rescue consists of searching, and then removing people that are alive. Animals may also be recovered, if resources and conditions permit. Generally triage and first aid are performed outside. The general form of rescue is to shuffle through the structure with the right hand against the wall, or utilizing a tool. Many fire departments follow a two-in, two-out rule, and in a large room the second person would follow behind the first, usually on their immediate left. This is called a right hand search. There is also a left hand search, which is the same thing except the right and left are reversed. Rescuers must remember to search beds and cupboards, and to identify themselves to victims. Many children are very frightened of fire-fighters in breathing masks.

Rescue may also involve the extrication of victims of motor vehicle accidents. Here firefighters use spreaders, cutters, and rams, tools more commonly known as the Jaws of Life. More technical forms of rescue include subsets such as rope rescue, confined space rescue, and trench rescue. These types of rescue are often extremely hazardous and physically demanding.

Property

Buildings that are made of fuel, such as frame buildings, are different from fire-proof buildings such as concrete high-rises. Generally, the fire in a fire-proof building can be limited to a floor. Other floors can be safe simply by preventing smoke inhalation and damage. A burnable building must be evacuated.

Property preservation is a great help to people. Most fires can be limited to burning only the upper part of a frame structure. If possible, gas, electricity and water should be turned off during the search, and all movable property should be tipped into the middle of a room and covered with a heavy cloth tarp. This reduces damage from water, smoke and burning embers. If the structure doesn't catch, it's very helpful to ventilate it to reduce smoke damage.

Fire control
Firefighters at an urban--wildfire interface. This is becoming an increasing concern as people build more homes in and near forested land.

Fire control consists of depriving a fire of fuel, oxygen or heat. The standard way is to remove heat by spraying the burning solid fuels with water from a fire-hose. Some fuels float on water, and are actually spread by water (such as gasoline). Some departments can use chemical dust even on large fires. These are preferable because the property damage can be so much less than with water. Petroleum fires are more often smothered with foam. In electrical fires, the crucial thing is to turn off the electricity.

Most fires spread as hot gases move through the structure. Some fires can be controlled or limited by venting these gases to the outside. This can aggravate a fire if it introduces new oxygen, or permits a draft past fuel or structure, so it should be attempted only by veteran fire fighters.

Firefighters are constantly training and updating their skills on equipment. Some of their tools include extrication equipment, ladder trucks, tanker trucks, pumper trucks, and ambulances.

Fire Fighters
Doctors
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These fast facts were based off of a Wikipedia Document on Community Helpers.

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