3M 60921 Vs 60923 Vs 60926 Cartridge

Same Mount, Three Levels of Gas Protection — Match the Cartridge to Your Hazard, Not Your Budget

Reviewed by WC Safety Editorial — Last updated: June 2026.

Short answer: All three are P100 combination cartridges that mount on the same 3M bayonet respirators. The 60921 covers organic vapor + P100. The 60923 adds acid gas (HCl, Cl2, SO2). The 60926 is the multi-gas cartridge — it adds ammonia, methylamine, formaldehyde, and hydrogen fluoride on top. Pick the lowest tier that fully covers the gases in your hazard assessment.

Selection Rule: OSHA 29 CFR 1910.134 requires cartridge selection to be based on a site-specific hazard assessment. Over-specifying (buying the 60926 "to be safe" when only OV is present) wastes money; under-specifying is a compliance and safety failure. Match the cartridge to the documented hazard. See the full 3M Respirator Filter & Cartridge Guide for the selection methodology.

Quick Comparison: 60921 vs 60923 vs 60926

Prices are approximate street prices and vary by retailer and pack size.

3M 60921 vs 60923 vs 60926: Side by Side

The Protection Hierarchy

These three cartridges are best understood as nested tiers of gas protection on an identical P100 particulate base:

• 60921 — Organic Vapor + P100. The baseline. Solvents, paint thinners, aromatic and aliphatic hydrocarbons, plus 99.97% particulate filtration. No acid-gas capability.
• 60923 — adds Acid Gas. Everything the 60921 covers, plus chlorine, hydrogen chloride, sulfur dioxide, and chlorine dioxide. The right step up when acid-producing chemistry enters the picture.
• 60926 — adds Multi-Gas (ammonia, methylamine, formaldehyde, HF). The broadest 3M bayonet combination cartridge. One cartridge for facilities with several gas hazards at once.

For the cartridge families without the integrated P100 (the 6001 / 6003 / 6006 series), see 3M 6001 vs 6003 and the NIOSH cartridge color chart.

When to Choose Each Cartridge

Choose the 3M 60921 when:

• Your hazard assessment shows organic vapors and particulates but no acid or specialty gases
• Applications: solvent-based spray painting, lacquering, degreasing, resin and adhesive work
• You want the lowest-cost OV/P100 combination cartridge

Choose the 3M 60923 when:

• Acid gases (HCl, Cl2, SO2, ClO2) are present alongside organic vapors
• Applications: chemical processing, wastewater treatment, swimming-pool chemicals, battery handling, acid-catalyzed coatings
• Your SDS sheets list acid gases but not ammonia, formaldehyde, or HF

Choose the 3M 60926 when:

• Ammonia, methylamine, formaldehyde, or hydrogen fluoride appear in your exposure profile
• You want one cartridge that covers a wide mix of gas and vapor hazards without stocking several SKUs
• Applications: refrigeration (ammonia), labs and anatomy/embalming (formaldehyde), semiconductor and metal etching (HF), multi-process plants

Prefer a Head-to-Head? Read the Pairwise Comparisons

This guide covers all three at once. For a deeper two-way breakdown of any pair:

• 3M 60921 vs 60923 — is acid-gas protection worth it?
• 3M 60923 vs 60926 — when do you need multi-gas coverage?
• 3M 60921 vs 60926 — the smallest vs the broadest cartridge.

Compatible Facepieces

All three cartridges use the 3M bayonet mount and fit every 3M half mask respirator in the 6000, 6500, and 7500 series, plus the 6800/6900 full facepieces. For demanding chemical environments, pair them with the 7500 series silicone facepiece, or move to a 3M full face respirator for eye and face protection. Browse all options in half mask respirators.

Frequently Asked Questions

Common questions

Does the rating on the box equal the protection I get?

No. Published ratings come from laboratory conditions. Regulators apply derating precisely because real fit is worse, and the derated figure is the one to plan from.

Which figure should a written program use?

The derated one, and the conservative derate where more than one applies. Planning on the label is how a worker ends up with less protection than the paperwork claims.

Who is responsible for providing this equipment?

Where a standard requires PPE for a hazard, the employer provides it at no cost to the employee, along with training in its use, care and limitations.

Does equipment expire?

Most of it does. Elastomers harden, foams stop rebounding, and coatings craze. A component past its service life can look perfectly serviceable and no longer perform.

Is a higher rating always better?

No. Over-protection carries its own hazards, from isolation from alarms to heat stress and reduced dexterity. Match the rating to the measured or assessed exposure.

What if two published sources disagree?

Treat it as unresolved and plan on the lower figure until the manufacturer or the marking on the item settles it. We flag these disagreements on the page rather than picking one.

Does a foreign approval count in the United States?

Generally no. US workplaces require the US approval - NIOSH for respirators, and the relevant ANSI standard for most other PPE. A CE, EN or AS/NZS mark describes a different test.

Is training required as well as equipment?

Where a standard requires PPE it almost always requires training with it: what the hazard is, how to fit and inspect the item, its limitations, and when to replace it.

Does PPE replace engineering controls?

No. PPE sits at the bottom of the hierarchy of controls. Where engineering or administrative controls can reduce the exposure, they are required first and PPE is not a substitute.

How do I know an item actually meets the standard it claims?

Look for the marking on the item itself, not the listing copy. Standards specify what must be stamped on the product, and a claim that appears only in a description is not a marking.

Do I need to keep records?

For most PPE-triggering standards, yes - hazard assessments, training, and where applicable monitoring or medical surveillance. The record is what demonstrates the program exists.

What should I check when equipment arrives?

That the markings match what was ordered, that nothing is damaged or past a stated shelf life, and that the size range actually covers the people who will wear it.

How often should this be reviewed?

Whenever the work changes, the equipment changes, or the standard is revised - and on a stated interval regardless, so the review happens even when nothing appears to have changed.

Where does the authoritative wording live?

In the regulation or consensus standard itself, not in a summary. Anything on this page is a reading of that text and the citation is given so it can be checked.

Does a higher price indicate better protection?

No. Protection is defined by the rating and the fit achieved, not the price. A correctly fitted inexpensive item outperforms a poorly fitted expensive one every time.

Sources. Requirements referenced here come from OSHA 29 CFR 1910 and the NIOSH recommendations. Where a consensus standard governs, the ANSI document is named in the text.

Related reference

If this page is part of a wider question, the neighbouring references are 3m 2097 vs 60921, 3m 6001 vs 60921, 3m 60921 vs 60923 cartridge, 3m 60921 vs 60926 cartridge, 3m 60921 vs d80921, 3m 60921 vs honeywell north 7581p100l, honeywell 7581p100l vs 3m 60921 and 3m 6003 vs 3m 60923. Each covers one standard or one figure, so they can be read in any order.

Further reading in the same area: 3m 60923 vs 60926 cartridge, 3m 60923 vs d80923, 3m 6006 vs 60926, 3m 60926 vs d80926, 3m 60926 vs honeywell north 75scp100l, honeywell 75scp100l vs 3m 60926, 3m 6001 vs 6003 cartridge, 3m filter cartridge guide.

Neighbouring topics that come up in the same decision: 3m organic vapor cartridges which one do you need, 3m secure click respirator filters cartridges guide 2026, 3m vs honeywell north respirator cartridges, are respirator cartridges universal, best 3m cartridge for acid gas, best 3m cartridge for solvents, best 3m cartridge for spray paint, best 3m multi gas cartridge.

Why trust WC Safety

WC Safety is an independent, affiliate-supported review site. It is not a retailer: it holds no inventory, takes no orders, and earns only from qualifying purchases through clearly marked links — which never changes what a product is rated to do. Standards language is taken from the regulation text directly, and ratings are reported as the manufacturer publishes them. We run no laboratory and perform no testing of our own. Where published sources disagree, we say so and plan on the conservative figure rather than the flattering one.

Our methodology

Figures come from the regulation and the published specification, in that order. Derated numbers are calculated, not estimated. Nothing here is presented as a measured result, because we measure nothing.

Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page compares what manufacturers and regulators publish, with the gaps in that record marked. Last reviewed August 2026.