Fire Extinguishers How Often Should You Replace Fire Extinguishers If You Haven't Used Them?

How often should you replace fire extinguishers if you haven't used them? - fire extinguishers

We have a fire extinguisher that almost 10 years. We never had to use one of them. Should I replace it?

I think of those who are to teach my 9 a.m. to 11 a.m.-year-old children how to effectively use and then replaced by new ones exist.