A dry chemical fire extinguisher is a handheld fire extinguisher that uses a dry chemical powder to smother and extinguish fires.

How Does It Work?

When a dry chemical fire extinguisher is discharged, the powder is expelled from the extinguisher in a fine mist or stream. The powder forms a barrier between the fuel and the oxygen in the air, preventing the fire from spreading.

Dry chemical fire extinguishers are effective on Class A (ordinary combustibles), Class B (flammable liquids), and Class C (electrical equipment) fires. However, they should not be used on Class D (metal) fires.

How to Use a Dry Chemical Fire Extinguisher

1. Pull the pin. This will release the extinguishing agent.

2. Aim the nozzle at the base of the fire.

3. Squeeze the handle to discharge the extinguishing agent.

4. Sweep the extinguisher from side to side, covering the entire fire area.

5. Continue to discharge the extinguishing agent until the fire is out.

Safety Precautions

* *When using a dry chemical fire extinguisher, be sure to:*

* Stand a safe distance away from the fire.

* Wear eye protection and gloves.

* Avoid inhaling the extinguishing agent.

* Do not use an extinguisher on a fire in a confined space.

Maintenance

Dry chemical fire extinguishers should be inspected monthly to ensure that they are in good working order. The extinguisher should be recharged after every use.