3M 6002 Review: Acid Gas Cartridge Uses, Fit & Alternatives

Reviewed by the WC Safety Editorial Team. Brand: 3M · Model/SKU: 6002 · Class: Acid Gas (AG), NIOSH 42 CFR Part 84 · white color code.

Quick Verdict

The 3M 6002 is a specialty cartridge: a gas-only acid gas cartridge for workers whose hazard assessment confirms a single acid gas — chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, or hydrogen fluoride — with no organic vapor and no airborne particulate. For that narrow profile it is the lowest-cost, lowest-breathing-resistance choice in the 3M bayonet line.

It is the wrong cartridge for anyone working with solvents, paint, dust, weld fume, ammonia, or formaldehyde. Those hazards fall outside acid-gas sorbent chemistry, and reaching for a 6002 there leaves you unprotected. If your atmosphere mixes acid gas with other contaminants, you want a combination or multi-gas cartridge instead.

The closest alternative is the 3M 6003 when organic vapor is also present, or the 3M 60922 when particulate is present. To place the 6002 in the wider range, start with our respirator cartridge selection guide and browse the full 3M respirator cartridges and filters collection.

What the 3M 6002 Is Designed For

The 6002 sits in the acid gas branch of the 3M cartridge lineup — a chemically specific class distinct from the organic-vapor 6001 and the multi-gas 6006. Its sorbent is formulated to capture acidic gases rather than the solvent vapors a standard activated-carbon cartridge handles. NIOSH approves it for chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen fluoride, and hydrogen sulfide (escape).

Typical workplaces match that chemistry: chemical manufacturing and handling, water and wastewater treatment (chlorine dosing), pulp and paper bleaching (chlorine dioxide, sulfur dioxide), glass etching and semiconductor work (hydrogen fluoride), and laboratory acid-gas tasks. In each, the 6002 is appropriate only when the gas is the governing hazard and concentrations are confirmed below IDLH. For contaminant-by-contaminant help, see the acid gas respirator cartridge guide.

Key Specifications

Real-World Use Cases

Chemical handling. Transfer, sampling, and maintenance around HCl, SO₂, or Cl₂ processes where the gas is the hazard and the area is mist-free.

Manufacturing. Pulp and paper bleaching exposes operators to chlorine dioxide and sulfur dioxide; the 6002 suits these gases when no particulate is generated.

Water and wastewater treatment. Chlorine gas during dosing and cylinder changes is a textbook 6002 application — pair with a full facepiece for higher protection.

Maintenance. Glass-etching and semiconductor maintenance involving hydrogen fluoride vapor, where HF is the controlling hazard.

Note what is absent from this list: painting, solvents, and dust or particulate work. Those are not acid-gas tasks and the 6002 does not cover them — see the next section.

What This Cartridge Does Well

• Delivers focused, NIOSH-approved acid gas protection at the lowest cost in the 3M line
• Lower breathing resistance than a P100 combination cartridge — easier on long shifts
• Simple to select and stock when one known acid gas is the hazard
• Uses the standard 3M bayonet connection, so it fits the entire 3M half-mask and full-face bayonet range
• Makes sense as a deliberate, single-purpose choice once a hazard assessment confirms acid gas alone

Where This Cartridge Is Not the Right Choice

The 6002 is single-class, so several common hazards fall outside it:

• Organic vapors (solvents, paint, epoxy) — not covered; use the 3M 6001 organic vapor cartridge, or the 3M 6003 when acid gas is also present.
• Dust, weld fume, or acid mist (particulate) — the 6002 has no filter. Add a 3M 2091 P100 prefilter, or use the combination 3M 60922 (acid gas/P100).
• Ammonia or formaldehyde — outside the acid-gas class; these need a dedicated or 3M 6006 multi-gas cartridge.
• Mixed or unknown gases — choose the multi-gas 6006, or the 60926 when particulate is also present.

3M 6002 vs Similar 3M Cartridges

For the full breakdowns, see the 3M 6003 review and the 3M 6006 review, plus the related 3M 6001 vs 6003 comparison and 3M 60923 vs 60926 comparison.

Compatible Respirators

The 6002 uses the 3M bayonet connection and fits the full 3M bayonet respirator range — half mask and full face:

• 3M 6000 Series half masks — the 6100/6200/6300
• 3M 6500QL Series half masks — the 6501/6502/6503 Rugged Comfort respirators
• 3M 7500 Series half masks — the 7500 Series silicone half masks
• 3M 6000 Series full face — the 6000 full facepieces (APF 50)
• 3M 7800S Series full face — the 7800S full facepieces
• 3M Ultimate FX FF-400 full face — the Ultimate FX FF-400 respirators

3M bayonet cartridges do not fit Honeywell North, MSA, or Moldex masks, and the 6002 is not a Secure Click cartridge — confirm the mount in our respirator cartridge compatibility guide.

Who Should Buy This Cartridge?

• Water and wastewater operators handling chlorine gas with no particulate present
• Chemical handlers and maintenance teams exposed to HCl, SO₂, or Cl₂ as the sole hazard
• Pulp, paper, and glass-etching workers facing chlorine dioxide, sulfur dioxide, or hydrogen fluoride vapor
• Not the right choice for painters, solvent users, welders, or anyone facing dust, ammonia, or formaldehyde — those need a different 3M cartridge

Final Recommendation

Buy the 3M 6002 when your hazard assessment confirms a single acid gas with no particulate or organic vapor — it is the most cost-effective, lowest-resistance way to get NIOSH acid gas protection on a 3M facepiece. Its closest alternative is the 3M 6003 if solvents are also in play; the natural upgrade is the 3M 60922 when acid mist or dust appears, or the 3M 6006 for mixed gases. Confirm the match with our how to choose a respirator cartridge guide, review the change interval in the respirator cartridge lifespan guide, and shop the 3M respirator cartridges and filters collection. You can also check 3M 6002 pricing on Amazon (affiliate link).

Frequently Asked Questions

What is the 3M 6002 used for?
It is an acid gas cartridge for environments where a known acid gas — chlorine, HCl, SO₂, ClO₂, or HF — is the hazard and no organic vapor or particulate is present.

What does the 3M 6002 protect against?
NIOSH-approved acid gases: chlorine, hydrogen chloride, sulfur dioxide, chlorine dioxide, hydrogen fluoride, and hydrogen sulfide (escape). Not organic vapor, ammonia, formaldehyde, or particulate.

Does the 3M 6002 fit 3M 6000 respirators?
Yes — it uses the 3M bayonet mount and fits the 6000 Series half masks and full facepieces.

Does the 3M 6002 fit 3M 7500 respirators?
Yes — the 7500 Series silicone half masks use the same bayonet connection.

Is the 3M 6002 good for painting?
No. Paint releases organic vapor (and spray mist); use the 3M 6001 instead.

Is the 3M 6002 good for welding?
No. Weld fume is a particulate; you need a P100 filter such as the 3M 2091.

Is the 3M 6002 a P100 cartridge?
No — it is gas-only. For acid gas plus particulate, use the 3M 60922 or add a 2091 prefilter.

How often should the 3M 6002 be replaced?
On a documented change-out schedule — it has no end-of-service-life indicator. See the cartridge lifespan guide.

What is the difference between the 3M 6002 and 6003?
The 6002 is acid gas only; the 6003 adds organic vapor. Pick the 6003 when solvents and acid gas coexist.

What is the difference between the 3M 6002 and 60922?
Same acid gas protection; the 60922 adds a P100 filter for mist and dust.

Does the 3M 6002 work with full face respirators?
Yes — it mounts on 3M 6000 and 7800S full facepieces for higher protection and eye coverage.

Is the 3M 6002 good for chlorine?
Yes — chlorine is in its acid-gas class; prefer a full facepiece for meaningful exposure and add P100 if mist is present.

Does the 3M 6002 protect against organic vapors?
No — use the 3M 6001 for organic vapor or the 3M 6003 for organic vapor plus acid gas.

Can I add a P100 filter to the 3M 6002?
Yes — a 2091 P100 with a 501 retainer mounts over the cartridge, or use the integrated 60922.

Which 3M cartridge should I choose for mixed gases?
The 3M 6006 multi-gas, or the 60926 multi-gas/P100 when particulate is also present.