How to Dispose of a Fire Extinguisher

Never Trash a Charged Extinguisher

A fire extinguisher that isn't completely empty is hazardous: the compressed cylinder can explode if crushed or incinerated. So never puncture, burn, or throw a pressurized extinguisher in the trash or recycling. If the gauge still reads in the charged (green) zone, the unit needs special handling — take it to a household hazardous waste (HHW) facility or a fire-equipment service company, both of which can handle a full cylinder. Only a fully emptied extinguisher is safe to recycle or, where allowed, discard.

Rechargeable vs. Disposable

Check the label and build. Rechargeable extinguishers have a sturdy metal valve head, a metal pressure gauge, and a label saying they're serviceable — these can be recharged and recertified by a certified fire-equipment company after use. Disposable (single-use) units are lighter, often with a plastic head and a 'dispose after use' label; they can't be refilled. Under the NFPA 10 standard, disposable extinguishers should be taken out of service 12 years after the manufacture date stamped on the cylinder, and rechargeable dry-chemical units get a hydrostatic test on a 12-year cycle.

How to Empty and Recycle It

To retire a usable-but-unwanted extinguisher yourself: take it outdoors to a well-ventilated open area, aim away from people, pets and anything flammable, and squeeze the lever to discharge all the agent. Let it sit a few days and recheck the gauge to confirm the pressure is fully gone. Then unscrew the head from the cylinder so a recycler can see it's empty — the steel cylinder and head can be recycled as scrap metal. The common ABC dry-chemical powder (monoammonium phosphate) is only a mild irritant, but avoid breathing it. If you'd rather not do this, a fire-equipment company or your HHW facility will depressurize it for you.

Where to Take It

Reliable drop-offs: a household hazardous waste (HHW) facility or collection event, a fire-equipment service/recharging company, and many local fire departments — but fire-department acceptance varies and some stations can't take used or expired units, so call the non-emergency line first. Big-box stores generally don't help: Home Depot has no take-back program and points customers to their local HHW facility or fire department. Use Earth911.com or your county solid-waste department to find a specific local option.

Frequently Asked Questions

How do I dispose of an old or expired fire extinguisher?

If it's still pressurized, take it to a household hazardous waste (HHW) facility or a fire-equipment service company — don't trash it. If you empty it yourself (discharge outdoors, confirm the gauge reads empty, remove the head), the steel cylinder can be recycled as scrap metal. Find an HHW site in our household hazardous waste directory.

What's the difference between a disposable and rechargeable extinguisher?

Rechargeable units have a metal valve head and gauge and a serviceable label; a certified fire-equipment company can recharge and recertify them. Disposable units are single-use (often a plastic head, 'dispose after use' label) and can't be refilled — NFPA 10 says to retire them 12 years after the manufacture date.

How do I empty a fire extinguisher to recycle it?

Outdoors in a ventilated area, aim it away from people and flammables and squeeze the lever until all agent is discharged. Wait a few days and recheck the gauge to confirm zero pressure, then unscrew the head. The empty steel cylinder goes to a scrap-metal recycler. Don't breathe the powder.

Does the fire department or Home Depot take old fire extinguishers?

Many fire departments accept them, but it varies by station and some can't take expired units — call the non-emergency line first. Home Depot and most big-box stores do NOT have a take-back program; they direct you to a local HHW facility or fire-equipment company.