Description: The term ‘inert’ refers to fireworks that do not react or explode, meaning those that do not produce the expected visual or auditory effects in a pyrotechnic display. These devices can result from malfunction, defective manufacturing, or simply be designed not to detonate. In the context of fireworks, inertness can be a concerning aspect, as safety is paramount in their use. Inert fireworks can be dangerous if mishandled, as they may be mistaken for devices that are meant to explode. Therefore, it is essential for pyrotechnic operators to be able to identify these devices and handle them with caution. The classification of a device as inert can also depend on its state of preservation and the conditions in which it is stored, highlighting the importance of proper handling and education on safety in the use of pyrotechnic devices.