Standard procedures for fire safety demonstration
1. Lift (extract the fire extinguisher
Hold the handle with your right hand and support the bottom of the bottle with your left hand (for bottles weighing over 4 kilograms, both hands are required).
Key points of the movement: Keep vertical and avoid collision
2. Pull out (pull out the safety pin
Press the button with your thumb and pull it out vertically (avoid rotating and pulling)
Error Warning: Spraying without removing the pin will damage the pressure valve
Hold (hold the front end of the nozzle
3. Hold the hard bell mouth of the nozzle 20cm behind with your right hand (to prevent frostbite/scalding)
Special note for CO₂ : Wear anti-freezing gloves and hold an insulating handle (-78℃ low temperature)
4. Pressing (Pressing handle spraying)
Stand 3 to 5 meters away from the fire source, on the upwind side
Strafing technique
Oil fire: A fan shape covers the base of the flame
Electrical fire: Spark to isolate oxygen
Flowing fire: Suppressing from near to far
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