What must be done to an extinguisher after it has been used?

After a fire extinguisher has been used, it is crucial to either recharge or replace it. This is because the agent inside the extinguisher is depleted during its use, and a used extinguisher cannot effectively combat a fire until it is operational again. Recharge refers to the process of refilling the extinguisher with the appropriate extinguishing agent and ensuring that it is in proper working order. If the extinguisher is damaged or has been used to the point where it can't be recharged, it must be replaced to ensure safety and compliance with fire safety regulations. Proper maintenance of extinguishers is essential to ensure they are ready for use in case of a fire emergency.