The no-residue choice for electronics

Clean Agent Portable Extinguishers (Halotron I, Halotron BrX, FE-36)

Amerex · Badger (agent: Halotron) Canada & United States $$ · Costs more per unit of rating than dry chemical; no reliable public figure

Halocarbon clean agent extinguishers discharge a liquid that evaporates and leaves no residue, which suits computer rooms, aircraft, museums and vehicles. They cost more per unit of fire rating than dry chemical.

Why we like it

No residue, so no clean-up damage to electronics, documents or artefacts
Larger units carry a small Class A rating as well as B:C
Sold through fire equipment dealers, Grainger and Uline, with some on Amazon

Watch out for

More expensive per unit of rating than dry chemical
Halotron I is HCFC-based and FE-36 is an HFC — both agent types face regulatory phase-down

Best for

Server and computer rooms, museums and archives, aircraft and vehicles.

Read the full market guide — costs, install effort and alternatives ↓

Market guide

The whole commitment, end to end

What this actually is, what the market looks like, what it really costs, and how much of your time it wants — before you spend anything.

Buying it Easy

Installing it Trivial

Living with it Easy

Up front

No reliable public figure — get quotes.

Lead time

Days; some sizes may need ordering

Time to install

Minutes

How it works

The agent leaves the nozzle as a rapidly evaporating liquid. It cools the fire and chemically interrupts the flame reaction, then evaporates completely, leaving nothing on the equipment. Its maker describes Halotron I as the 'Halon 1211 replacement of choice' for handheld and wheeled extinguishers. Larger sizes earn a small Class A rating in addition to B:C.

Who needs it

Not separately required — an owner choice under NFPA 10 for spaces with sensitive electronics or contents.

Codes, standards and listings

Canada: Halocarbon clean agent extinguishers per CAN/ULC-S566; rating per CAN/ULC-S508; selection under the National Fire Code of Canada.
United States: Halocarbon clean agent extinguishers per UL 2129; rating per UL 711; selection per NFPA 10.

What the market looks like

Halotron makes the agents (Halotron I and BrX); extinguisher manufacturers such as Amerex and Badger build them into finished units. FE-36 is another halocarbon agent used in this class. Units are sold by fire equipment dealers, Grainger and Uline, and some appear on Amazon.

Features that actually matter

No residue: The agent evaporates — the main reason to pay more.
Small Class A rating on larger units: Unlike CO2, bigger clean agent units can be used on ordinary combustibles.
Halon 1211 replacement: Used where Halon handhelds were once standard, such as aviation.
Agent choices: Halotron I, Halotron BrX and FE-36 are the agents named in this category.

What it really costs

Up front: No reliable public figure — get quotes.
Consumables: Recharge after use; agent cost dominates. No reliable public figure — get quotes.
What else you'll need: Bracket and signage.
Over five years: Five annual services; 6-year maintenance and 12-year hydrostatic test fall later. No reliable public figure — get quotes.

No public price source was checked; all cost lines need dealer quotes.

How it differs from the alternatives

Versus ABC dry chemical: No corrosive powder on electronics, at a higher price per unit of rating.
Versus CO2: Larger clean agent units carry a Class A rating, and they avoid CO2's asphyxiation concern in small rooms.
Regulatory outlook: Halotron I is HCFC-123 based, and remaining HCFC production in the US ends in 2030 under the Clean Air Act/Montreal Protocol. FE-36 (HFC-236fa) falls under the AIM Act phase-down. Ask your dealer about recharge availability over the unit's life.

Buying it

Effort Easy

Where: Fire equipment dealers (who also service them); industrial suppliers such as Grainger and Uline; some units on Amazon.

Lead time: Days; some sizes may need ordering

Ask which agent the unit uses and whether the dealer expects to be able to recharge it in ten years.

Installing it

Effort Trivial

Time: Minutes

You'll need: Drill · Wall anchors · Bracket

Mount at the entrance to the room it protects.

Living with it

Effort Easy

Annual service, 6-year maintenance and 12-year hydrostatic test.

If not this, then what

CO2 extinguisherAlso residue-free and usually cheaper, but no Class A rating and riskier in small rooms.
ABC dry chemicalCheapest general coverage, if you accept the powder clean-up.

Caveats

Halotron I is HCFC-123 based; remaining HCFC production is being phased out (2030 end in the US).
FE-36 (HFC-236fa) is an HFC subject to AIM Act phase-down.
No price source was checked; get dealer quotes.

Our verdict

Worth the premium wherever powder would do more damage than the fire — server rooms, archives, aircraft. Ask about the agent's regulatory future before buying a fleet of them.

We don't take payment for placement and we don't sell these products. If you think we've got something wrong here, tell us — we'll correct it.

Sources

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