In this video tutorial, viewers learn how to use a fire extinguisher. The fire extinguisher contains carbon dioxide. Begin by pulling the pin on the top of the fire extinguisher. The will unlock the lever. Now lift up the nozzle and aim the fire extinguisher at the fire. Then squeeze the lever to release the extinguisher agent. As you are spraying the extinguisher, use a sweeping motion to move it back and forth until the fire is completely out. This video will benefit those viewers who do not know how to use a fire extinguisher and would like to learn in case of an emergency.