Abc vs Co2 Fire Extinguisher: Which One Should You Buy?
ABC dry chemical sprays and a CO2 extinguisher compared for garage and vehicle fires, with stated coverage, sizes, ranges and mounting for each listing.
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Top picks at a glance
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- 1
ABC Fire Extinguisher for Home & Vehicle9.7/10View on Amazon - 2
Amerex 322 CO2 Class B C Fire Extinguisher9.4/10View on Amazon - 3
Ougist ABC Fire Extinguisher for Home & Vehicle9.4/10View on Amazon - 4
First Alert Fire ExtinguisherView on Amazon - 5
Kidde Full Home Fire ExtinguisherView on Amazon - 6
Kidde Pro 210 Commercial Fire ExtinguisherView on Amazon - 7
Ougist ABC Dry Chemical Fire ExtinguisherView on Amazon - 8
Amerex B500 5 lb ABC Dry Chemical Fire Extinguisher 2-PackView on Amazon - 9
Amerex B500 Fire ExtinguisherView on Amazon
Verdict: In this abc vs co2 fire extinguisher comparison, choose an ABC spray if you want dry chemical coverage for kitchen grease, electrical and vehicle fires in a small 2-pack unit for the garage or a vehicle. Choose the CO2 unit if you want a 5 lb extinguisher listed for Class B flammable liquid and Class C electrical fires, with a wall bracket for a wall-mounted garage spot.
A brake job ends with the garage door open, tools on the bench, and a charger plugged in beside the car, and that is when a small fire tool earns its place on the wall or in the trunk. That choice is what abc vs co2 fire extinguisher comes down to: a dry chemical spray that covers several fire types in a small pack, against a CO2 unit listed for two fire classes with a fixed bracket. This comparison covers both sides, then one example of each listing from the listings reviewed.
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| # | Product | Shop Score | Buy |
|---|---|---|---|
| 1 | ABC Fire Extinguisher for Home & Vehicle | 9.7/10 | Buy on Amazon |
| 2 | Amerex 322 CO2 Class B C Fire Extinguisher, 5 lb. | 9.4/10 | Buy on Amazon |
| 3 |  Small Fire Extinguisher for Home & Car | 9.4/10 | Buy on Amazon |
ABC Fire Extinguisher for Home & Vehicle
A 2-pack of 1.32 lb ABC dry chemical sprays with 600g of powder per unit, a stated range of up to 13 feet, and a 3-year guarantee.
Pros
- 600g ABC powder per unit, stated in the listing
- Effective range of up to 13 feet, stated in the listing
- Non-conductive, non-corrosive formula for electronics and vehicles, per the listing
- 3-year guarantee stated in the listing
Cons
- No discharge time stated
- No lithium battery coverage stated
- Dry chemical powder agent, unlike the CO2 unit
- No wall bracket stated
Amerex 322 CO2 Class B C Fire Extinguisher, 5 lb.
A 5 lb CO2 extinguisher for Class B and Class C fires, with a 10-second discharge time, all metal valve construction and a wall bracket included.
Pros
- Class B and Class C coverage stated
- 10-second discharge time stated
- All metal valve construction
- Wall bracket included
Cons
- No Class A coverage stated
- No effective range stated
- No warranty term stated
- CO2 agent only, unlike the ABC sprays
Small Fire Extinguisher for Home & Car
A 2-pack of 1.32 lb ABC dry chemical sprays with a stated range of up to 13 feet, a leak-proof build and mounting for cars, trucks and boats.
Pros
- Effective range of up to 13 feet, stated in the listing
- Dry chemical formula forms a flame-retardant layer, per the listing
- Leak-proof build for long-term storage, per the listing
- Fits under seats, door compartments and trunks, per the listing
Cons
- No dimensions stated
- No warranty term stated
- No discharge time stated
- Dry chemical powder agent, unlike the CO2 unit
Other tools worth a look
First Alert Fire ExtinguisherCheck price on Amazon
Kidde Full Home Fire ExtinguisherCheck price on Amazon
Kidde Pro 210 Commercial Fire ExtinguisherCheck price on Amazon
Ougist ABC Dry Chemical Fire ExtinguisherCheck price on Amazon
Amerex B500 5 lb ABC Dry Chemical Fire Extinguisher 2-PackCheck price on Amazon
Amerex B500 Fire ExtinguisherCheck price on Amazon
Side by side
| Ougist ABC Spray Blue | Amerex 322 CO2 5 lb | Ougist ABC Spray Red | |
|---|---|---|---|
| Agent | ABC dry chemical powder | Carbon dioxide | ABC dry chemical powder |
| Listed coverage | Electrical, grease, flammable gas | Class B flammable liquid, Class C electrical | Electrical, vehicle, kitchen grease, lithium battery |
| Pack and weight | 2-pack, 1.32 lb each | 5 lb unit | 2-pack, 1.32 lb each |
| Effective range | Up to 13 feet | Not stated | Up to 13 feet |
| Discharge time | Not stated | 10-second discharge time | Not stated |
| Dimensions | 4.0 inches x 2.0 inches x 12.0 inches | Not stated | Not stated |
| Mounting | Not stated | Wall bracket included | Mounts on cars, trucks, boats |
| Warranty term | 3-year guarantee | Not stated | Not stated |
| Powder charge | 600g ABC powder | Not stated | Not stated |
Example figures are manufacturer rated, as published on each listing and collected 4 November 2026.
abc vs co2 fire extinguisher: what separates the sides
The ABC side in this comparison is two Ougist sprays, both sold as a 2-pack with 1.32 lb per unit and a stated range of up to 13 feet. The CO2 side is one Amerex unit at 5 lb, listed for Class B and Class C fires with a 10-second discharge time. The sides differ most in agent and stated coverage: the Ougist listings name kitchen grease, electrical, vehicle and flammable gas fires, while the Amerex listing names Class B flammable liquid fires and Class C electrical fires.
Coverage by fire class
The red Ougist listing names kitchen grease, electrical, vehicle and garage fires, plus lithium battery fires. The blue Ougist listing names electrical and car fires, grease fires and flammable gas flames. The Amerex listing names Class B flammable liquid spills or fires and fires involving electrical equipment under Class C. A buyer who wants stated grease coverage finds it on the Ougist listings, while a buyer who wants a CO2 unit finds Class B and Class C coverage on the Amerex listing.
Size, range and discharge
The Ougist examples list 1.32 lb per unit in a 2-pack, and both state an effective range of up to 13 feet. The blue Ougist example also lists 600g of ABC powder per unit and dimensions of 4.0 inches x 2.0 inches x 12.0 inches, while the red Ougist listing states no dimensions. The Amerex example lists 5 lb with a 10-second discharge time, all metal valve construction and a wall bracket included. No discharge time is stated for either Ougist listing, and no effective range is stated for the Amerex listing.
Choose an ABC spray if
- You want stated coverage for kitchen grease and electrical fires
- You want a 2-pack, with a spare unit for a vehicle or a second spot
- You want a spray with a stated range of up to 13 feet
- You want a compact 1.32 lb unit that fits under a seat or in a trunk
Choose the CO2 unit if
- You want a CO2 unit listed for Class B and Class C fires
- You want a 5 lb unit with a stated 10-second discharge time
- You want all metal valve construction with a wall bracket included
- You want a wall-mounted garage unit rather than a 2-pack of sprays
Example extinguishers
For more choices, see the best fire extinguisher for a garage.
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Garage Fit Check
- Check a wall spot for the Amerex wall bracket, since that listing includes one.
- Check storage space against the blue Ougist example dimensions of 4.0 inches x 2.0 inches x 12.0 inches.
- Note the stated 13 feet effective range on both Ougist listings when choosing a mounting spot.
- Check that the Amerex listing states Class B and Class C coverage, while the Ougist listings state grease and electrical coverage.
- Remember the Ougist listings sell a 2-pack, while the Amerex listing lists a 5 lb unit.
FAQ: garage tools
Can an ABC spray handle a kitchen grease fire?
Yes, as stated: the red Ougist listing names kitchen grease fires, and the blue Ougist listing names grease fires. Both Ougist listings also name electrical fires.
What fires is the CO2 unit listed for?
The Amerex listing names Class B flammable liquid spills or fires and fires involving electrical equipment under Class C. It states a 10-second discharge time and all metal valve construction.
How long does the CO2 unit discharge?
The Amerex listing states a 10-second discharge time. No discharge time is stated for either Ougist listing.
What size are the Ougist sprays?
Both Ougist listings sell a 2-pack with 1.32 lb per unit. The blue Ougist example lists dimensions of 4.0 inches x 2.0 inches x 12.0 inches, while the red Ougist listing states no dimensions.
Does the Amerex unit come with a wall bracket?
Yes, the Amerex listing includes a wall bracket. It also lists all metal valve construction and a weight of 5 lb.
Related: the fire blanket vs fire extinguisher comparison, the best fire extinguisher for gas fires, and our garage upgrades hub.
