It is important to stay on top of the maintenance of your fire extinguisher to ensure that it will work properly when you need it. Depending on the type of extinguisher you have and its age, it may be necessary to perform certain tests or checks at different intervals.   Generally speaking, most portable fire extinguishers should be inspected every month and maintained every year. It can help ensure that your extinguisher has sufficient pressure and is free from any blockages or obstructions that could prevent it from functioning properly during a fire emergency.   Additionally, if your extinguisher has been exposed to fires or heat, it may need to be replaced sooner than its regular maintenance schedule. As such, you must stay informed about how often you should check your fire extinguisher to always rely on it when you need it most.