Refilling your fire extinguisher might cost you around $20 to $50 but depending on the class and size of the fire extinguisher, ... date for fire extinguishers. However, there are signs you can ...

Clean the outside of the fire extinguisher when you inspect it; extinguishers should remain free of dirt, oil and grease; Don't allow the unit to get dented, especially around the nozzle and handle ...