3M 6004 Ammonia and Methylamine Respirator Cartridge

3M 6004 Overview

The 3M 6004 is a NIOSH-approved ammonia and methylamine respirator cartridge for 3M bayonet respirators, carrying the green NIOSH color band. It adsorbs ammonia (NH₃) and methylamine vapor and twist-locks onto 3M reusable half masks and full facepieces. Buy the 6004 when your specific hazard is ammonia or methylamine vapor — it is the dedicated, lowest-cost cartridge for that exposure.

It is a gas/vapor cartridge only — it has no particulate filter, and it does not protect against organic solvent vapor or acid gas. If dust or mist is also present, pair it with a 3M 5N11 or 5P71 prefilter and 501 retainer, or choose the all-in-one 3M 60924 (NH₃/MA + P100). To confirm the right class, use the how to choose a respirator cartridge guide, the 3M filter & cartridge guide, and the cartridge color chart, or browse the 3M filters and cartridges collection.

Where the 3M 6004 Fits in Respirator Selection

The 6004 is a single-class gas cartridge — select it only when ammonia or methylamine is your confirmed hazard, ideally via an industrial-hygiene assessment.

• Ammonia / methylamine vapor only → the 6004.
• Ammonia / methylamine + dust → 6004 with a prefilter, or the 3M 60924 with built-in P100.
• Organic solvent vapor (not ammonia) → the 3M 6001. Compare in organic vapor vs P100.
• Multiple gases → a multi-gas cartridge such as the 3M 6006 or the 3M 60926 (multi-gas/P100).

Who Should Buy the 3M 6004?

Buy the 6004 if your confirmed hazard is ammonia or methylamine vapor and there is no significant dust — refrigeration mechanics, water/wastewater operators, fertilizer and chemical handlers, and lab staff.

Choose a different part if:

• Dust or mist is also present → add a 5N11/5P71 prefilter, or buy the 3M 60924 (NH₃/MA + P100).
• Your hazard is solvent vapor, not ammonia → the 3M 6001.
• You face several gases at once → the 3M 6006 or 3M 60926.

What Does the 3M 6004 Protect Against?

What the 3M 6004 Does NOT Protect Against

• Dust / particulate (no filter)
• Organic solvent vapor
• Acid gas
• Formaldehyde
• Carbon monoxide
• Oxygen deficiency
• Unknown atmospheres
• IDLH conditions

Safety: The 3M 6004 is rated only for ammonia and methylamine vapor. It has no particulate filter and does not protect against organic vapor, acid gas, formaldehyde, or carbon monoxide, and no cartridge adds oxygen. Ammonia can be immediately dangerous at high concentrations — oxygen-deficient, unknown, and IDLH atmospheres require supplied air, SCBA, or another solution specified by a qualified safety professional. Where dust is also present, add a 5N11 prefilter or use the 3M 60924.

Best Applications for the 3M 6004

Refrigeration & Ammonia Systems

Industrial refrigeration uses anhydrous ammonia, and the 6004 is the dedicated cartridge for ammonia-vapor exposure during maintenance and leak response below IDLH. Confirm concentrations against your program; if levels approach IDLH, use supplied air instead.

Water & Wastewater Treatment

Treatment plants handle ammonia and amine compounds where the 6004 fits routine operations on a fit-tested 3M facepiece. If chlorine or other acid gases are also present, you need an acid-gas or multi-gas cartridge instead — see the color chart and the multi-gas cartridges collection.

Fertilizer, Chemical & Lab Handling

Ammonia and methylamine appear in fertilizer production and many lab processes, where the 6004 covers the vapor hazard. Add a prefilter if powders or mists are also airborne, or choose the 60924 for combined gas and P100 protection.

3M 6004 Pros & Cons

Compatible 3M Respirators

The 3M 6004 uses the standard 3M bayonet connection and mounts to 3M reusable half masks and full facepieces:

Standard 3M bayonet connection. Does not fit Honeywell North, Moldex, MSA, GVS, or 3M Secure Click respirators. For particulate, add a 5N11/5P71 prefilter with the 501 retainer.

3M 6004 vs Other 3M Gas Cartridges

3M 6004 vs 60924

Both protect against ammonia and methylamine; the difference is the particulate filter. The 6004 is gas-only, so if dust is present you must add a prefilter. The 3M 60924 builds a P100 filter into the same NH₃/MA cartridge. Buy the 6004 for clean ammonia-vapor environments at the lowest cost. Buy the 60924 when dust or mist is also in the air and you want one-piece gas-plus-particulate protection.

3M 6004 vs 6006

The 6004 is single-class (ammonia/methylamine); the 3M 6006 is a multi-gas cartridge that covers organic vapor, acid gas, and ammonia together. Buy the 6004 when ammonia is your only hazard — it is cheaper and purpose-built. Buy the 6006 when several gases are present and you want broad single-cartridge coverage.

3M 6004 Quick Answers

What is the 3M 6004?

The 3M 6004 is a NIOSH-approved ammonia and methylamine respirator cartridge for 3M bayonet respirators. It adsorbs ammonia and methylamine vapor and carries the green NIOSH color band. It has no particulate filter.

Does the 3M 6004 protect against dust?

No. The 6004 is a gas cartridge with no particulate filter. If dust or mist is present, add a 3M 5N11 or 5P71 prefilter with a 501 retainer, or use the 3M 60924, which has P100 built in.

What is the 3M 6004 color code?

Green — the NIOSH color band for ammonia and methylamine protection.

Does the 3M 6004 protect against organic vapor or acid gas?

No. The 6004 is rated only for ammonia and methylamine. For organic vapor use the 3M 6001; for several gases use the 3M 6006 or 60926.

3M 6004 Specifications

Helpful Buying Guides

• How to Choose a Respirator Cartridge
• 3M Filter & Cartridge Guide
• Respirator Cartridge Color Chart
• Organic Vapor vs P100
• Respirator Filter Types Explained
• P100 vs N95

3M 6004 Frequently Asked Questions

What is the 3M 6004 used for?

The 6004 is used for ammonia and methylamine vapor protection — refrigeration, water and wastewater treatment, fertilizer and chemical handling, and lab work — on 3M bayonet respirators.

Does the 3M 6004 protect against ammonia?

Yes. The 6004 is NIOSH-rated for ammonia and methylamine vapor and carries the green color band identifying that protection.

Does the 3M 6004 have a particulate filter?

No. The 6004 is a gas/vapor cartridge only. For dust, add a 3M 5N11 or 5P71 prefilter with a 501 retainer, or use the 3M 60924, which includes P100.

What respirators does the 3M 6004 fit?

It fits 3M bayonet respirators: the 6000, 6500QL, 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 6004 and 60924?

Both protect against ammonia and methylamine. The 60924 adds a built-in P100 filter for dust; the 6004 is gas-only and needs a separate prefilter if particulate is present.

What is the NIOSH color code for the 3M 6004?

Green, which identifies ammonia and methylamine protection.

Does the 3M 6004 protect against chlorine or other acid gases?

No. The 6004 is not rated for acid gases such as chlorine. For acid gas, use an acid-gas cartridge; for several gases, the multi-gas 3M 6006 or 60926.

Can I use the 3M 6004 for organic solvent vapor?

No. Organic solvent vapor requires an organic-vapor cartridge such as the 3M 6001. The 6004 is rated only for ammonia and methylamine.

How many 3M 6004 cartridges do I need?

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

Is the 3M 6004 good for refrigeration ammonia?

Yes, for ammonia vapor below IDLH on a fit-tested 3M respirator. At high concentrations or unknown levels, ammonia can be immediately dangerous and requires supplied air or SCBA.

When should I replace the 3M 6004?

Replace it on your employer's change-out schedule, or sooner if you detect ammonia odor or irritation, breathing becomes difficult, or the cartridge is damaged.

Should I buy the 3M 6004 or the 60924?

Buy the 6004 for clean ammonia-vapor environments at the lowest cost. Buy the 60924 if dust or mist is also present and you want gas-plus-P100 protection in one cartridge.

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