The fire alarm is an emergency equipment, which is used to remind people of the fire and urge them to take escape action. The following is how to use the fire alarm: 1. Installation of alarm: First of all, the alarm should be installed in a suitable position in the building, usually on the ceiling or wall, to ensure timely alarm in case of fire. 2. Familiar with the alarm: Before using the alarm, you should be familiar with the instruction manual carefully and know how to start and stop the alarm. 3. Trigger the alarm in case of fire: If a fire is found, immediately press the button on the alarm or pull down the cable on the alarm to trigger the alarm. 4. Follow the escape plan: after hearing the alarm, you should quickly follow the escape plan made in advance, leave the building as soon as possible, and try to avoid using the elevator. 5. Turn off the alarm: If the alarm is a false alarm or the fire has been put out, turn off the alarm immediately. The use of fire alarm can help people to take action and escape quickly when a fire breaks out. Remember to regularly test whether the alarm works normally to ensure that you are familiar with the escape plan. Keep calm in an emergency and don't panic. Proper use of alarm can help people get valuable escape time.