Technical Articles

How many B1 fire extinguishers must be?

B1 fire extinguishers are essential safety equipment that can help prevent or control fires in various settings. The number of B1 fire extinguishers required depends on several factors, including the size and layout of the area to be protected, the level of fire risk, and local regulations. In this article, we will explore the guidelines for determining the appropriate number of B1 fire extinguishers in different scenarios.

1. Assessing the fire risk

The first step in determining the number of B1 fire extinguishers needed is to assess the fire risk of the specific environment. Factors to consider include the type of occupancy, the presence of flammable materials or hazardous substances, and potential ignition sources. For example, a commercial kitchen will require more B1 fire extinguishers due to the higher risk of grease fires compared to an office space.

2. Calculating the coverage area

The next consideration is the size of the area that needs to be protected. Each B1 fire extinguisher has a limited range and is suitable for certain coverage areas. Typically, a B1 fire extinguisher can effectively cover an area of approximately 200 square meters. By calculating the total area to protect, you can estimate the number of B1 fire extinguishers required.

3. Understanding local regulations

In addition to assessing fire risk and calculating coverage area, it is crucial to understand local regulations regarding fire safety. Authorities may have specific requirements or recommendations for the number and types of fire extinguishers according to the building codes, occupancy, and fire prevention standards. Compliance with these regulations ensures maximum safety and protection.


Determining the appropriate number of B1 fire extinguishers is a crucial aspect of fire safety planning. By assessing the fire risk, calculating the coverage area, and understanding local regulations, one can ensure that adequate fire protection measures are in place. Remember, fire safety is everyone's responsibility, and having the right number of B1 fire extinguishers can make a tremendous difference in preventing and minimizing the impact of fires.


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