1 Study your audience â try to find out the age range and the educational or social background. Itâll help you choose the most appropriate wording and references that will appeal to the majority of the targeted audience.  Once the topic is chosen, come up with 3-4 arguments that would speak in favor of your subject.
Fire extinguishers should be maintained at regular intervals (at least once a year), or when specifically indicated by an inspection. Maintenance is a âthorough checkâ of the extinguisher. It is intended to give maximum assurance that an extinguisher will operate effectively and safely.
Maintenance Requirements: The maintenance requirements depend on the type of portable fire extinguisher. Stored pressure or dry chemical type extinguishers do not require an internal examination. Water or steam type fire extinguishers should be discharged, disassembled and inspected annually (NFPA 10, 4-4.1.1).