From the time a fire starts, family members have less than 4 minutes to escape being overcome by smoke, poisonous gases or superheated air. Do not attempt to extinguish a fire unless it can be put out in a few seconds. Keep one on every level of the dwelling and one in the garage.
Proper use is essential, because contents empty fast.
Aim at the base of the fire and sweep from side to side. Stand 6-8 feet from the fire. Classification A - Ordinary combustibles, wood paper, trash. Classification B - Greases, oils, gasoline, paint, etc. Classification C - Electrical wiring, plugs, equipment, etc.