The gauge on my unused fire extinguisher is in the red-what should I do?

If a fire extinguisher pressure gauge shows that the charge is in the red zone, a disposable fire extinguisher should be replaced. If any of your rechargeable fire extinguishers show a pressure gauge reading in the red, they should be taken to a local fire extinguisher service business to be recharged and serviced if necessary. Please Note: If you trigger-test a First Alert® fire extinguisher, your warranty will be void.