How often should I replace my fire extinguisher? Is there a specific timeframe, or does it depend on usage, maintenance, and the type of extinguisher in question? What factors should I consider when determining the longevity of my fire suppression device? Could age alone dictate the necessity for replacement, or might there be indicators of wear and tear that signal the need for a new unit? For instance, should I be concerned about the last service date, or are there physical signs, such as rust or dents, that warrant immediate action? Furthermore, how does the environment in which the extinguisher is stored influence its lifespan? Is it true that certain classes of extinguishers have varying replacement schedules based on the materials they protect against? In what instances would recharging be more viable than a complete replacement? As a responsible property owner, what best practices should I adhere to in order to safeguard my premises?