
First Alert EZ Fire Spray
- Fire Extinguisher
- Corded electric
- 1
- 18 fl oz
- More reviewed than 70%
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How it ranks among the 10 fire extinguishers we track
4.8★ across 12,600 Amazon ratings, Bayesian-smoothed toward the category average.
12,600 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
1,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 10 fire extinguishers we track - how the scorecard works · full fire extinguishers data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The First Alert EZ Fire Spray (AF400) is an aerosol alternative to a traditional extinguisher, discharging for about 32 seconds, roughly four times longer than a standard unit. It targets paper, fabric, wood, grease and electrical fires.
Instead of a lever-and-hose design, this is a point-and-spray aerosol can, which trades some raw output for ease of use. The wide spray pattern and biodegradable, nontoxic formula also mean less mess and toxicity to clean up afterward than a dry chemical extinguisher leaves behind.
- About 32 seconds of spray, four times a standard extinguisher
- Biodegradable, nontoxic formula wipes clean
- Wide nozzle for easier aim under pressure
- 3 year limited warranty, ETL rated
Who it's for
Good for kitchens, garages, boats, RVs and dorms where a lightweight, easy-to-grab can beats wrestling with a heavier canister. Less suited to anyone who wants the sustained output or larger-scale rating of a standard dry chemical extinguisher.
What buyers say
From Amazon customer reviews.
Reviewers report using this in real fires, not just testing it: a kitchen sink fire from spilled lighter fluid, a neighbor's truck fire, and a downed tree and transformer fire were all put out with it. Several call it easier to aim than a lever extinguisher, especially under panic. The one four-star reviewer had not yet used it on a fire and raised a logistics point common to RVs and boats: one can up front does not help if the fire starts at the other end, so they wanted a second unit.
Strengths and trade-offs
Drawn from this product's published specifications.
- Simple point-and-spray operation, no lever to work under stress
- Long, roughly 32 second discharge time
- Nontoxic formula wipes up easily afterward
- Light enough to keep in a car, RV or boat
- Aerosol format is not rechargeable or refillable
- Lighter build than a dry chemical extinguisher for a larger fire
Performance notes
The aerosol delivers roughly 32 seconds of spray, about four times a standard extinguisher's discharge time, through a wide nozzle that reviewers describe as easier to aim than a lever-operated unit. The biodegradable, nontoxic formula wipes clean rather than leaving the corrosive residue typical of dry chemical agents.
Specifications
| Brand | First Alert |
|---|---|
| Model | AF400 |
| Dimensions & fit | |
| Item Weight | 0.2 ounces |
| Item Dimensions D x W x H | 2.6 × 2.4 × 2.4 inches |
| Power & efficiency | |
| Power Source | Corded electric |
| Construction & materials | |
| Enclosure Material | Metal |
| Color | Red |
| Compatibility & installation | |
| Compatible Devices | compatible_devices |
| Included components | |
| Unit Count | 18 fl oz |
| Warranty & support | |
| Manufacturer Warranty Description | 3 years |
| Other details | |
| Number of Items | 1 |
| Alarm | ability to quickly and effectively dispense fire-suppressing chemicals in a spray form when activated. |
| BuiltIn Media | 1 |
| Item Highlight | AF400 |
| Item Type Name | Tundra Fire Extinguishing Spray, Aerosol Spray |
| Mfr Part Number | FT0004 |
| Product Style | EZ Fire Spray |
How it compares
This product against the closest alternatives we track in fire extinguishers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| First Alert EZ Fire SprayThis product | 4.8 / 5 | 12,600 | 4.8 / 5 |
| Kidde Auto 10 Fire Extinguisher for Cars and TrucksKidde | 4.8 / 5 | 2,300 | 4.7 / 5 |
| Amerex B500 Fire ExtinguisherAmerex | 4.6 / 5 | 2,300 | 4.3 / 5 |
| Kidde Basic 110 Fire Extinguisher for HomeKidde | 4.8 / 5 | 30,200 | 4.7 / 5 |
| Kidde Pro 460 Commercial Fire ExtinguisherKidde | 4.7 / 5 | 5,100 | 4.4 / 5 |
Questions about the First Alert AF400
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How long does the First Alert EZ Fire Spray AF400 last per can?
It discharges for around 32 seconds, about four times longer than a typical fire extinguisher.
What kinds of fires is it made for?
It's built for paper, fabric, wood, grease and electrical fires around the kitchen, garage, boat, RV or dorm.
Can the residue damage surfaces?
Reviewers and the product description describe the formula as biodegradable and nontoxic, and it wipes clean rather than leaving a corrosive residue.






