3M 60924 P100 Ammonia Methylamine Respirator Cartridge

3M 60924 Overview

The 3M 60924 is a NIOSH-approved ammonia / methylamine / P100 combination cartridge for 3M bayonet respirators — it adsorbs ammonia and methylamine gas while a bonded P100 filter captures at least 99.97% of oil and non-oil airborne particles in a single housing. It carries the green (ammonia/methylamine) and magenta (P100) NIOSH color bands and twist-locks onto 3M reusable half masks and full facepieces. Reach for the 60924 when your air holds both an ammonia/methylamine hazard and particulate and you want gas and dust protection in one cartridge instead of pairing a gas cartridge with a separate filter.

It is a combination cartridge — not a particulate-only filter and not a gas-only cartridge. If your only hazard is dust, a P100 particulate filter is the correct, cheaper choice; if it is ammonia or methylamine with no dust, the gas-only 3M 6004 is enough. To match protection to your exposure, start with the how to choose a respirator cartridge guide and the 3M filter & cartridge guide, or browse the full lineup in the 3M respirator filters and cartridges collection.

Where the 3M 60924 Fits in Respirator Selection

Identify the contaminant before choosing any cartridge — ideally through an industrial-hygiene assessment. The 60924 sits in the combination tier: pick it only when your air carries an ammonia/methylamine gas hazard and a particulate hazard at the same time.

• Particulate only (dust, fume, mist): use a P100 filter such as the 3M 2091. Compare classes in respirator filter types explained and P100 vs N95.
• Ammonia/methylamine only (no dust): use the gas-only 3M 6004. See the respirator cartridge color chart to read the green band, and organic vapor vs P100 to see why gas and particulate need different media.
• Ammonia/methylamine + particulate (the 60924's job): use this NH₃/MA/P100 combination, or step up to the broader 3M 60926 if other gases are also present.

Who Should Buy the 3M 60924?

Buy the 60924 if your air contains ammonia or methylamine together with dust, mist, or spray, and you run a 3M bayonet respirator — it consolidates the gas and P100 protection into one cartridge so you are not stacking parts.

Choose a different part if:

• You face ammonia/methylamine but no dust → the gas-only 3M 6004 is correct and cheaper (add a prefilter if dust later appears).
• You only face dust or fume → the 3M 2091 P100 filter.
• You face a broader gas mix that also includes ammonia → the 3M 60926 multi-gas/P100 is the wider-coverage option.
• You need multi-gas coverage without an attached filter → the 3M 6006 multi-gas cartridge.

What Does the 3M 60924 Protect Against?

The 60924 pairs ammonia/methylamine sorbent with P100 particulate filtration. It protects against:

What the 3M 60924 Does NOT Protect Against

• Organic-solvent vapor
• Acid gases
• Formaldehyde
• Carbon monoxide
• Oxygen deficiency
• Unknown atmospheres
• IDLH conditions

Safety: The 3M 60924 protects only against the ammonia, methylamine, and particulates within its NIOSH rating and assigned cartridge limits. It does not protect against organic-solvent vapor, acid gases, formaldehyde, carbon monoxide, or other contaminants outside its approval, and no cartridge adds oxygen. Oxygen-deficient, unknown, and IDLH atmospheres require supplied air, SCBA, or another solution specified by a qualified safety professional. For a broader gas mix that also includes ammonia, use the 3M 60926 multi-gas cartridge.

Best Applications for the 3M 60924

Industrial Refrigeration Service

The 60924 suits ammonia-refrigeration maintenance where a leak releases NH₃ gas alongside dust or mist, because it handles gas and particulate on one bayonet cartridge. Confirm your contaminants against the cartridge color chart, and if the air is gas-only with no dust the cheaper 6004 covers it.

Wastewater & Water Treatment

For treatment-plant work where ammonia off-gassing coincides with mist and particulate, the 60924's green-band sorbent captures the gas while the bonded P100 captures the particulate. If a wider range of gases is present, step up to the 60926; browse alternatives in the combination cartridges collection or the multi-gas cartridges collection.

Agricultural & Livestock Operations

Where ammonia from manure or fertilizer mixes with airborne dust, the 60924 gives single-cartridge coverage on a fit-tested 3M facepiece. For pure dust exposure without ammonia, compare the 2091 (P100 only) in the P100 filters collection.

3M 60924 Pros & Cons

Compatible 3M Respirators

The 3M 60924 uses the standard 3M bayonet connection and mounts to 3M reusable half masks and full facepieces:

The 60924 uses the standard 3M bayonet connection. It does not fit Honeywell North, Moldex, MSA, GVS, or 3M Secure Click respirators.

3M 60924 vs Other 3M Filters and Cartridges

3M 60924 vs 6004

This is the comparison most buyers should run first. Both the 60924 and the 3M 6004 use the same green-band ammonia/methylamine sorbent on the 3M bayonet platform — the difference is the bonded P100 filter. The 60924 adds particulate protection in the same cartridge; the 6004 is gas-only and lists at a lower price. Buy the 60924 when dust or mist is present with the ammonia. If your air is gas-only, the 6004 is the cheaper correct choice — and you can add a separate prefilter later if particulate appears.

3M 60924 vs 60926

The difference here is breadth of gas coverage. The 60924 is rated for ammonia and methylamine only; the 3M 60926 is a multi-gas/P100 cartridge that covers a wider range of gases and vapors — including ammonia — on the same P100 base. Buy the 60924 when ammonia/methylamine is your only gas hazard. Buy the 60926 when other gases or vapors are also present and you want one cartridge to cover the mix.

3M 60924 vs 2091

This is a class difference, not a value question. The 3M 2091 is a P100 particulate filter only — it stops dust, fume, and mist but no gas. The 60924 adds ammonia/methylamine sorbent on top of P100. Use the 2091 when your hazard is particulate only; use the 60924 when ammonia or methylamine is also present. A 2091 in an ammonia environment leaves you unprotected against the gas.

3M 60924 Quick Answers

What is the 3M 60924?

The 3M 60924 is a NIOSH-approved ammonia / methylamine / P100 combination respirator cartridge for 3M bayonet half- and full-face respirators. It captures ammonia and methylamine gas plus at least 99.97% of oil and non-oil particles in one cartridge.

Is the 3M 60924 P100?

Yes. The magenta band on the 60924 indicates a P100 particulate layer, filtering at least 99.97% of oil and non-oil airborne particles in addition to its ammonia and methylamine protection.

What is the 3M 60924 NIOSH color code?

The 60924 carries a green band (ammonia and methylamine) and a magenta band (P100 particulate), identifying it as an ammonia/methylamine/P100 combination cartridge.

Does the 3M 60924 protect against organic vapor?

No. The 60924 is rated for ammonia, methylamine, and particulate only. For organic-solvent vapor with particulate you need a different combination cartridge, and for a broader gas mix step up to the 3M 60926 multi-gas/P100.

3M 60924 Specifications

Helpful Buying Guides

• How to Choose a Respirator Cartridge — match the protection class to your exact hazard.
• 3M Filter & Cartridge Guide — the full 3M chart and job-site selection.
• Respirator Cartridge Color Chart — the NIOSH color bands at a glance, including the green ammonia band.
• Organic Vapor vs P100 — why a gas cartridge and a particulate filter do different jobs.
• Respirator Filter Types Explained — N95, P95, and P100 ratings decoded.
• P100 vs N95 — efficiency and oil rating compared.

3M 60924 Frequently Asked Questions

What does the 3M 60924 protect against?

The 60924 protects against ammonia and methylamine gas and against particulates at P100 (99.97%) efficiency. It does not stop organic-solvent vapor, acid gases, formaldehyde, or carbon monoxide.

Does the 3M 60924 include a particulate filter?

Yes. The 60924 has a bonded P100 particulate layer, so it captures dust, fume, and mist in addition to ammonia and methylamine gas — no separate filter or retainer is needed.

What respirators does the 3M 60924 fit?

The 60924 fits 3M bayonet respirators: the 6000, 6500, and 7500 half masks and the 6000, 7800S, and Ultimate FX FF-400 full facepieces. It does not fit Honeywell North, Moldex, MSA, GVS, or 3M Secure Click.

What is the difference between the 3M 60924 and 6004?

Both use the same ammonia/methylamine sorbent, but the 60924 adds a bonded P100 particulate filter and the 6004 is gas-only. Choose the 60924 when dust or mist is present with the gas; choose the lower-cost 6004 when the air is gas-only, adding a prefilter later if particulate appears.

Is the 3M 60924 good for ammonia refrigeration leaks?

Yes, when a leak releases ammonia gas together with airborne dust or mist — the green-band sorbent captures the ammonia and the P100 layer captures the particulate. For routine gas-only exposure, the gas-only 6004 also covers ammonia at a lower cost.

Does the 3M 60924 protect against carbon monoxide?

No. No air-purifying cartridge protects against carbon monoxide. CO exposure requires a supplied-air respirator or SCBA selected by a qualified safety professional.

Does the 3M 60924 protect against organic solvents or acid gas?

No. The 60924 is rated for ammonia, methylamine, and particulate only. For organic-vapor or acid-gas exposure you need a different cartridge; the 3M 60926 multi-gas/P100 covers a broader range of gases.

What is the NIOSH color code for the 3M 60924?

Green over magenta — green indicates ammonia and methylamine protection and magenta indicates P100 particulate protection.

How many 3M 60924 cartridges do I need?

3M bayonet cartridges are installed as a pair — one on each side of the facepiece. Confirm the exact pack quantity on the current product listing before ordering, as packaging can vary.

When should I replace the 3M 60924?

Replace the cartridge according to your employer's change-out schedule, or sooner if it is damaged, breathing becomes difficult, or you detect odor, taste, or irritation — an early sign of gas breakthrough.

Can the 3M 60924 be used for dust only?

It will capture dust through its P100 layer, but a dedicated P100 filter such as the 3M 2091 is the standard, lower-cost choice for particulate-only work. Choose the 60924 only when ammonia or methylamine is also present.

Should I buy the 3M 60924 or the 60926?

The 60924 covers ammonia and methylamine only; the 60926 covers a broader multi-gas mix that also includes ammonia, on the same P100 base. Buy the 60924 if ammonia/methylamine is your only gas hazard; buy the 60926 if additional gases or vapors are present.

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