What types of extinguishers are considered "semi-portable"?

Semi-portable extinguishers, which are suitable for various locations and applications, can be maneuvered to different spots as needed. Types III, IV, and V belong to a category that allows for easy transport and use in different scenarios, hence they are labeled as semi-portable.

Type III extinguishers are often used for medium-sized fires and can typically handle a range of fire classes. Types IV and V are designed for larger fires and may hold more extinguishing agent, which increases their effectiveness in certain emergency situations. Their semi-portable nature makes them versatile for use in both indoor and outdoor environments, allowing them to be utilized effectively in varied settings.

Other options do not align with the definition of "semi-portable." Types I and II tend to refer to other classifications without the same level of portability or capability suited for semi-portable use, while Type A is focused specifically on Class A fires, which may not encompass the necessary versatility found in semi-portable extinguishing equipment.