A fire helmet has to be cleaned after every structural fire, inspected after every use, given an advanced inspection at least once a year, and retired no more than ten years from the date of manufacture. Those rules now live in NFPA 1850, which took effect September 9, 2025 and replaced both NFPA 1851 and NFPA 1852. If your department SOP still cites NFPA 1851, it cites a standard that no longer exists, and several of the numbers your cleaning process depends on have changed.
Key Takeaways
- NFPA 1850 took effect September 9, 2025, consolidating NFPA 1851 for turnout gear and NFPA 1852 for SCBA.
- Departments had one year from the effective date to train members on the new standard.
- Advanced cleaning is required at least twice a year and after any exposure to smoke.
- Maximum advanced cleaning water temperature rose from 105°F to 120°F, with specialized cleaning permitted up to 140°F.
- Machine cleaning is now recognized for helmets, gloves, and footwear, not just garments and hoods.
- Unissued gear sitting in storage now needs an advanced inspection after three years.
- Retirement is unchanged at ten years from the date of manufacture, worn or not.
What NFPA 1850 Asks of Your Department
NFPA 1970 tells manufacturers how to build a helmet. NFPA 1850 tells your department what to do with it afterward, and it is the standard your PPE program, your SOPs, and your recordkeeping answer to.
The consolidation brought two new roles into the standard: a Personal Protective Clothing Manager who owns the program, and a PPC Technician who handles detailed maintenance and repairs. Neither carries rigid qualification requirements, and both can be collateral duties. The point is that someone's name is attached to the program.
Two deadlines came with it. Departments had to train members on the turnout gear portion within one year of the September 9, 2025 effective date. Independent Service Providers have up to two years to be verified to the new standard, depending on when they were last verified.
Routine Inspection After Every Use
The individual firefighter does this one, and it takes about two minutes. NFPA 1850 kept the routine inspection lists from the previous edition largely intact.
On a helmet, check for cracks, dents, gouges, or deformation in the shell. Look for blistering, bubbling, or discoloration suggesting heat damage, and for thermal damage to the ear and neck protector, chin strap, or comfort system. Confirm the suspension hardware is present and tight and that the chin strap quick-release still works. Check the faceshield or goggles for cracks, crazing, and heavy scratching. Look at the retroreflective trim for lifting or tearing, and make sure the certification and manufacture date label is still legible. Anything that fails goes to the PPC Technician rather than back on the rack.
Most of what routine inspection turns up is a soft good or a faceshield, which is why keeping helmet replacement parts on the shelf keeps helmets in service instead of in a box waiting on an order.
Advanced Inspection at Least Once a Year
A trained individual performs this one, and NFPA 1850 recommends pairing it with advanced cleaning. It is a full teardown: soft goods out, suspension examined, impact liner checked, hardware tested.
One change matters for departments with spare helmets in a closet. Advanced inspections historically applied only to issued gear. Under NFPA 1850, unused gear must undergo an advanced inspection after three years in storage. A helmet that has never been worn still ages.
The standard also emphasizes universal precautions during inspection, meaning all gear is treated as contaminated until it has been cleaned. Whoever does the work should be wearing examination gloves, protective sleeves, an apron, a faceshield, and a filtering facepiece respirator. Fire Safety USA stocks personal decon supplies for exactly this part of the program.
The Four Levels of Cleaning
Getting the terminology right matters, because your SOP and your ISP contract both depend on it.
Preliminary exposure reduction happens on the fireground before the firefighter takes the gear off: rinse the exterior, scrub with brush and detergent, rinse again. That is not cleaning, it stops contaminants riding back to the station on skin. Advanced cleaning is the thorough cleaning of individual items using machine or manual methods to remove most fireground soils. Specialized cleaning is either an enhancement to advanced cleaning, like presoaking or extra cycles, or a different process entirely for heavy contamination. Sanitization neutralizes biological contaminants, reducing microorganisms to one thousandth of their original number, and it comes before advanced cleaning rather than instead of it.
The rule of thumb carried over from the previous edition: exposure to smoke means the gear needs at least preliminary exposure reduction followed by advanced cleaning. At minimum, gear gets advanced cleaning twice a year regardless of call volume.
The Numbers That Changed
| Parameter | NFPA 1851, 2020 | NFPA 1850 |
| Advanced cleaning water temperature | 105°F maximum | 120°F maximum |
| Specialized cleaning water temperature | Not specified | Up to 140°F |
| Detergent pH range | Up to 10.5 | 6 to 9.5 |
| Water hardness | Not capped | 60 ppm maximum |
| Machine cleaning | Garments and hoods | Extended to helmets, gloves, footwear |
The temperature increase came from research showing better contaminant removal at higher temperatures without unacceptable material degradation. The water hardness cap exists because hard water reduces the ability of any water-based process to lift contaminants. Both are free to implement for a department running its own washer extractor with the right cleaning agents.
NFPA 1850 also recognizes lithium-ion battery fires as a distinct contamination hazard, with decision criteria for determining whether specialized cleaning is warranted based on how much of the fire involved batteries, the degree of firefighter exposure, and whether contaminant measurements are available.
Cleaning a Helmet Step by Step
Machine cleaning is now preferred for consistency, but hand cleaning remains valid where the manufacturer allows it.
Strip every soft good first. Under NFPA 1970, helmets are built so all of it comes out and goes back in within 20 minutes: ear and neck protector, comfort system or brow and crown pads, chin strap, ratchet cover. Remove the faceshield or visor and the suspension assembly. Wash the shell inside and out with a soft-bristle brush, mild detergent in the 6 to 9.5 pH range, and warm water, using no solvents, no abrasives, and no pressure washer. Wash the soft goods separately per the manufacturer's instructions. Rinse everything and air dry away from direct sunlight and heat sources. Inspect each component as you reassemble, since this is the best look you will get at the suspension all year. Then log the cleaning, because records are a program requirement rather than a nicety.
When a Helmet Comes Out of Service Immediately
Cleaning schedules assume the helmet is still serviceable. These conditions end that assumption on the spot.
Any crack in the shell dome ends it, and Bullard's guidance is that a cracked shell cannot be repaired and will not pass a dielectric test, which means current can pass through the shell to the wearer. A substantial blow from a falling object, or a fall where the head and helmet struck the ground, ends it. Blistering or bubbling on a thermoplastic shell from high heat ends it. Surface cracking or crazing on a fiberglass shell ends it, and the check there is to flex the material: any cracking sound or unexpected give means the shell has weakened. Direct flame exposure ends it regardless of visible damage. So does contamination that advanced or specialized cleaning will not remove.
When in doubt, take it out. A shell that looks fine and failed a dielectric test looks exactly like a shell that would have passed.
The Ten-Year Rule
NFPA 1850 keeps mandatory retirement at ten years from the date of manufacture. Not ten years from issue, and not ten years of service. Ten years from the date printed on the label.
The committee gave four reasons for holding the line. Product standards change and older gear falls behind current performance requirements. Materials and components degrade from use and from repeated cleaning. Contaminants accumulate, and some substances are never fully removed. And there is no reliable nondestructive test for continued performance, which means nobody can look at a nine-year-old helmet and prove it still performs. That last one is the real argument.
Because the clock runs whether or not the helmet is worn, departments holding spare inventory should rotate stock rather than let it sit. A helmet that spends eight years in a cabinet and two on a firefighter's head retires the same day as one that spent all ten on the truck. Proper gear storage racks keep that reserve stock out of UV light and diesel exhaust in the meantime.
Frequently Asked Questions
How often do fire helmets need to be cleaned?
After any exposure to smoke, and at minimum twice a year regardless of call volume. Smoke exposure triggers preliminary exposure reduction on the fireground followed by advanced cleaning at the station or through an Independent Service Provider.
How long do fire helmets last?
Ten years from the date of manufacture is the maximum permitted under NFPA 1850. The limit applies whether the helmet was worn daily or never issued. Helmets come out sooner for cracks, heat damage, significant impact, or contamination that cannot be removed.
Can you put a fire helmet in a washing machine?
NFPA 1850 extended machine cleaning to helmets, gloves, and footwear and prefers it over hand washing for consistency. Follow the helmet manufacturer's instructions, use a washer extractor rather than a household machine, and strip all soft goods first.
What water temperature should be used to clean turnout gear?
Advanced cleaning permits a maximum of 120°F under NFPA 1850, raised from 105°F in the previous edition. Specialized cleaning permits up to 140°F. Detergent pH must fall between 6 and 9.5, and water hardness should not exceed 60 ppm.
Does an unused fire helmet still need to be inspected?
Yes. NFPA 1850 requires an advanced inspection of unissued gear after three years in storage, and the ten-year retirement clock runs from the date of manufacture whether or not the helmet has been worn.
What makes a fire helmet fail inspection?
Cracks or deformation in the shell, blistering or crazing from heat, damaged or missing suspension components, a chin strap that no longer holds or releases, a faceshield with cracks or heavy crazing, degraded retroreflective trim, an illegible certification label, or contamination that cleaning will not remove.
Build the Program Around Parts You Can Get
Most inspection findings involve a part costing between thirteen and ninety dollars on a helmet worth three hundred or more. Fire Safety USA carries the helmet replacement parts, washer extractors and drying equipment, NFPA-appropriate cleaning agents, and gear storage racks that an NFPA 1850 program runs on. Call 1-877-699-3473 and a rep can help build a shelf list sized to your helmet count.