What type of fire extinguisher is considered non-rechargeable?

A non-rechargeable fire extinguisher is defined as one that is not designed to be refilled after use. Once the extinguisher is discharged, it is meant to be disposed of rather than recharged. This characteristic makes it clear that option B accurately describes the type of extinguisher in question.

Understanding this distinction is important because non-rechargeable extinguishers are often single-use devices, and ensuring they are replaced after their first use is crucial for maintaining fire safety. Other types of extinguishers, such as those that can be refilled or are designed for specific environments (like household use), may still be rechargeable and therefore do not fit this definition. Additionally, the material or design of an extinguisher's container, such as being made of glass, does not inherently determine whether it is rechargeable or non-rechargeable.