These are all high-pressure cylinders. CO 2 cylinders do not have a pressure gauge - they must be weighed to determine the amount of contents. Installation and Maintenance I nstall your fire extinguishers in plain view. Keep them out of reach of children and away from stoves and heating appliances. R ead the operator's manual to learn how to inspect and maintain your fire extinguisher.
Extinguishers require routine care.
R echargeable extinguishers must be serviced after every use. There is a list of service companies in the yellow pages. Disposable fire extinguishers can only be used once. Replace disposable extinguishers after use. Before Fighting the Fire Keep your back to an unobstructed exit and stand 6 to 8 feet away from the fire.