Is your fire extinguisher in need of a refill? This is how much it might cost you.

Having a portable fire extinguisher is a choice for some while required by law in states like New York. Owning a portable fire extinguisher can save lives and property, but proper care and training are required to use them, according to the U.S. Fire Administration.

Routine maintenance is necessary for all appliances including portable fire extinguishers. Whether used or accidentally discharged, the fire extinguisher might be in need of a recharge upon inspection, according to NFPA 10, National Fire Protection Association’s standard for portable fire extinguishers.

If you’re wondering how much it’ll take to refill your fire extinguisher, read on.

Portable fire extinguishers.
Portable fire extinguishers.

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How much does it cost to refill a fire extinguisher?

Not all fire extinguishers are eligible for a refill or a recharge; only fire extinguishers that are of the rechargeable type can be refilled. If yours is suitable for a recharge, it might cost around $20 to $50 to get it refilled by a professional company. Depending on the make and model of your fire extinguisher and where you live, the price may vary.

What are the types or classes of fire extinguishers?

Having fire extinguishers in your household can be a good idea but knowing which portable fire extinguishers fit your needs best is important. According to NFPA, there are five types of fire extinguishers:

Class A is used for fires in ordinary combustible materials, such as wood, cloth, paper, rubber and many plastics.

Class B is used for fires in flammable liquids, combustible liquids, petroleum greases, tars, oils, oil-based paints, solvents, lacquers, alcohols and flammable gases.

Class C is used for fires that involve energized electrical equipment.

Class D is used for fires in combustible metals, such as magnesium, titanium, zirconium, sodium, lithium and potassium.

Class K is used for fires in cooking appliances that involve combustible cooking media (vegetable or animal oils and fats).

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Do fire extinguishers have an expiration date?

According to Impact Fire Services, there’s no exact expiration date for fire extinguishers. However, there are signs you can look for:

1.  Rust and corrosion on the fire extinguisher. Any physical damage to the device should also lead to disposing of the extinguisher.

2.  A failed Hydrostatic test.

3.  Depressurization.

Where can you refill your fire extinguisher?

The best way to find out who can refill your fire extinguisher is to call your local fire department and ask. There are also private fire extinguishing companies that provide a recharge or a refill service. You could also contact the company of the fire extinguisher you own and ask them if they provide a refill service since some do.

This article originally appeared on USA TODAY: How much does it cost to refill a fire extinguisher?