Breathing is life for which the firefighters use devices to keep smooth breathing. It is not invented in a day. During the World War-I, there was the invention of gas mask. Fire departments started to use this. However, this mask did not give protection from carbon monoxide. Rebreather was invented in 1920 by the U.S Bureau of Mine to use in mines. Fire departments took that for their use. It mixed pure oxygen with inhaled air. The emergence of Self-Contained Breathing Apparatus(SCBA) is a milestone as firefighter turnout gear. This device sent air directly into the mask and was in a great use. But it was heavy and expensive and bring fatigue to the firefighters for which their working stamina reduced. National Fire Prevention Agency developed the widely used modern SCBA systems that enables positive air flow of 100 liters/minute and 30 minutes life service. This firefighting gear is life saving and should be used in fires.
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