![]() ![]() Fire spreading horizontally: Aim the hose at the base of the fire, moving the jet across the area of the fire.ī. Where to aim the fire extinguisher hose:Ī. Ensure you remain a safe distance from the fire and remove the safety pin (Fig 3). Before attempting to fight a fire with a fire extinguisher it is important to check that it is fully charged (Fig. Appearance: Water extinguishers are usually SILVER (crome-metal) in color, have a flat bottom, have a long narrow hose, and are quite large (2-1/2 gallons).1.Since the agent used is water, these types of extinguishers are inexpensive and environmentally friendly. However, the misting nozzle of a "Water Mist" extinguisher breaks up the stream of deionized water so that there is no conductive path back to the operator. In a "C" class fire, the water is conductive and poses a risk of electric shock to the operator. In "B" and "D" class fires, the water will spread the flames. However, they cannot be used in “B,” “C” or "D" class fires. Description: These extinguishers are most suited for “A” class fires.Appearance: CO2 (carbon dioxide) extinguishers are generally red, have a LARGE "tapered" nozzle (horn), are VERY HEAVY (15-85 lbs.) These are all high-pressure cylinders. ![]() It also poses very little danger to electronics and is effectively employed in laboratories, computer rooms, and other areas with sensitive equipment. Unlike other chemicals, CO2 does not leave a harmful residue and is environmentally friendly. They are effective against “B” and “C” class fires.
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