3M 6002 Acid Gas Respirator Cartridge

3M 6002 Acid Gas Cartridge — What It Protects Against

The 3M 6002 acid gas cartridge is a NIOSH-approved gas/vapor cartridge built for one job: capturing acid gases. It is the dedicated 3M acid gas cartridge in the 6000 series — the right respirator cartridge for acid gas exposure such as chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, and hydrogen fluoride. It twist-locks onto any 3M bayonet respirator (6000, 6500, and 7500 series). The question most buyers actually have is "is the 3M 6002 the right cartridge for my exposure, or do I need the 6006, 60926, or 6001 instead?" — this page answers exactly that.

3M 6002 Protection Matrix

In short: the 3M 6002 handles acid gases only. Anything that is a particulate (dust, mist) or a different gas class (organic vapor, ammonia, formaldehyde) needs a different or combination cartridge — see the upgrade path below.

Is the 3M 6002 Right for Your Application?

Use the 3M 6002 for: chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen fluoride, and muriatic acid fumes — known acid gases with no particulate present.

Do NOT use the 3M 6002 for: organic vapor, ammonia, formaldehyde, dust, mist, or in oxygen-deficient spaces. For a broader breakdown of acid gas protection across chlorine, hydrogen chloride, sulfur dioxide, and muriatic acid fumes, see the Best Respirator Cartridge for Acid Gas guide.

Best Applications for the 3M 6002

3M 6002 for Chlorine

The 3M 6002 for chlorine is a common choice for chlorine gas from pool chemicals, wastewater work, and industrial cleaning. If your exposure is specifically chlorine, start with the Best Respirator Cartridge for Chlorine guide.

3M 6002 for Muriatic Acid Fumes

Muriatic acid (hydrochloric acid) gives off hydrogen chloride fumes — an acid gas the 3M 6002 is rated for. It is a standard pick for concrete etching, masonry cleaning, and acid washing where no mist or particulate is generated.

3M 6002 for Sulfur Dioxide

The 3M 6002 for sulfur dioxide (SO₂) covers fumigation, food processing, and combustion-related SO₂ exposure within acid gas concentration limits.

3M 6002 for Industrial Cleaning

Acid-based cleaning chemicals release acid gases the 6002 is designed to capture — ideal for chemical cleaning and industrial maintenance where the only airborne hazard is acid gas.

3M 6002 for Wastewater Treatment

Wastewater operations using chlorine and sulfur dioxide for disinfection and dechlorination are a core 3M 6002 use case. Where ammonia is also present, step up to the 6006 multi-gas.

When the 3M 6002 Is Not Enough — Upgrade Path

Choosing between gas classes? The organic vapor cartridge vs multi-gas cartridge comparison explains where acid gas, organic vapor, and multi-gas protection differ.

3M 6002 vs 6006

The 3M 6002 protects against acid gases only. The 3M 6006 Multi-Gas Cartridge covers a much broader range — organic vapor, acid gas, ammonia, methylamine, and formaldehyde in one cartridge. Choose the 6002 when you have a confirmed acid-gas-only exposure and want the lowest-cost, longest-lasting option for that hazard; choose the 6006 when contaminants are mixed or unknown. If your job includes multiple gases beyond acid gas, compare the 3M 6002 with the 3M 6006 directly (and see the 6006 review).

3M 6002 vs 60926

Both cover acid gas, but the 3M 60926 Multi-Gas/P100 Cartridge adds a P100 particulate filter plus organic vapor, ammonia, and formaldehyde coverage. If your acid gas exposure also includes dust, mist, or particulate hazards — or you want one cartridge that handles almost anything — upgrade to the 60926. The 6002 remains the better value when the hazard is purely acid gas with no particulate.

3M 6002 vs Honeywell North N75002L

The Honeywell North N75002L Acid Gas Cartridge is the comparable acid gas cartridge for Honeywell North facepieces. It delivers equivalent acid gas protection but is not interchangeable — the 3M 6002 fits 3M bayonet respirators only. For acid gas plus particulate protection on North masks, compare the Honeywell North 7582P100L Acid Gas/P100 Cartridge. See Are Respirator Cartridges Universal? for why brands don't mix.

Compatible Respirators

The 3M 6002 twist-locks onto every 3M bayonet facepiece — half mask and full face:

Need a facepiece? Browse all 3M half mask respirators, or see the full lineup in the 3M Filter & Cartridge Guide. Acid gas cartridges use the white cartridge color code — see the Respirator Cartridge Color Chart for the full NIOSH/ANSI system.

NIOSH Approval & OSHA Compliance

For more on change-out timing, see How Long Do Respirator Cartridges Last.

Frequently Asked Questions

What does the 3M 6002 protect against?

Acid gases only — chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, and hydrogen fluoride. It does not protect against organic vapor, ammonia, formaldehyde, dust, or mist.

Does the 3M 6002 protect against chlorine?

Yes. Chlorine is an acid gas, and the 6002 is rated for it within NIOSH concentration limits — a common choice for pool chemicals, wastewater, and industrial cleaning. See the chlorine guide.

Does the 3M 6002 protect against organic vapors?

No. Organic vapor (solvents, paint fumes, epoxy) needs the 3M 6001, or the 3M 6003 if you need organic vapor and acid gas together.

Is the 3M 6002 good for muriatic acid fumes?

Yes. Muriatic acid releases hydrogen chloride, an acid gas the 6002 captures — provided there is no acid mist or particulate. If mist is present, step up to the 60926 (Multi-Gas/P100).

Does the 3M 6002 have P100 protection?

No — the 6002 is gas-only, with no particulate filter. For acid gas plus P100, use the 3M 60926, or add a separate P100 filter such as the 2091.

What is the difference between the 3M 6002 and 6006?

The 6002 is acid-gas only; the 6006 multi-gas also covers organic vapor, ammonia, methylamine, and formaldehyde. Choose 6006 for mixed or unknown gases; choose 6002 for confirmed acid-gas-only exposure.

What is the difference between the 3M 6002 and 60926?

The 60926 adds a P100 particulate filter plus broader multi-gas coverage on top of acid gas. Use it when dust, mist, or multiple gases are present; the 6002 is the value pick for acid gas alone.

What respirators does the 3M 6002 fit?

All 3M bayonet facepieces — the 3M 6000 Series (6100/6200/6300), 6502QL, 7502, and full-face 6800/6900. It does not fit other brands.

How long does the 3M 6002 last?

It depends on acid gas concentration, humidity, and breathing rate — there is no service-life indicator. Follow a written change-out schedule per OSHA 1910.134(d)(3)(iii); never wait until you smell or taste breakthrough. See How Long Do Respirator Cartridges Last.

Is the 3M 6002 interchangeable with Honeywell North cartridges?

No. The 3M 6002 fits 3M bayonet respirators only and is not interchangeable with Honeywell North, MSA, Moldex, or 3M Secure Click cartridges. The North equivalent is the N75002L. See Are Respirator Cartridges Universal?

NIOSH-approved for acid gases under 42 CFR Part 84. Air-purifying cartridges are not for use in IDLH or oxygen-deficient atmospheres. This content is not medical, legal, or regulatory advice — cartridge selection is governed by applicable OSHA standards and your facility's respiratory protection program.