Fire extinguishers
They usually last anywhere from 5 to 15 years, but they do need to be routinely maintained and replaced. When checking a fire extinguisher, first look at the pressure gauge (if present) at the top of the unit—green is good, red means toss it.
To check a small handheld extinguisher, rotate and shake the canister, and listen. If you can’t hear anything moving around, the fire-extinguishing chemicals may have solidified and will need to be replaced, even if a gauge indicates that the pressure is good.
