Moldex 7367 vs 3M 60923 OV+AG+P100 Combo — 2026 Comparison
Moldex 7367 vs 3M 60923: Which OV+AG+P100 combo cartridge for your platform?
— Both cartridges carry the same 42 CFR 84 approval class. The difference that matters is which respirator is already on your worker's face.
Moldex 7367 vs 3M 60923 OV+AG+P100 Combo Cartridge Comparison (2026)
Spray painters working with two-component isocyanate coatings, pesticide applicators handling organophosphate concentrates, and lab technicians managing acid mist co-exposures all need the same protection class: organic vapor (OV) absorption, acid gas (AG) absorption, and a P100 particulate barrier in a single cartridge. The Moldex 7367 and the 3M 60923 are the two dominant options in this class — one on each of the two most widely deployed cartridge platforms in North American industry.
This guide cuts through the spec sheets. Both cartridges meet identical NIOSH approval criteria and deliver chemically equivalent protection levels. What they do not share is mount geometry. The Moldex 7367 uses a Moldex 7000/9000-series bayonet lock; the 3M 60923 uses a 3M bayonet compatible with the 6000, 7000, and FF-400 series. If you already have a fleet of one platform, the choice is settled before you read the first datasheet. If you are selecting equipment from scratch for a new program, the comparison that follows provides everything needed to make the right call.
See the full Moldex 7367 product review for application-specific test notes, and the Moldex cartridge collection or 3M cartridge collection for the full range of options within each platform.
Quick Verdict
Platform compatibility determines the winner. Chemically, these cartridges are equivalent. Price, ESLI availability on upgrade paths, and respirator fleet already in place are the deciding factors.
Moldex 7367
Best when your program runs Moldex 7000 or 9000-series half-masks. At ~$11.62/set (~$23.24 for a two-cartridge respirator setup), it is the lower-cost option. Upgrade path: Moldex 7667 adds ESLI and formaldehyde coverage.
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3M 60923
Best when your program runs 3M 6000, 7000, or FF-400 series respirators. Currently $19.90/pair (sale) at WC Safety. Upgrade path: 3M 60926 broadens multi-gas coverage.
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Side-by-Side Specifications
| Specification | Moldex 7367 | 3M 60923 |
|---|---|---|
| NIOSH Approval Class | OV / Acid Gas / P100 | OV / Acid Gas / P100 |
| Regulatory Standard | 42 CFR 84 | 42 CFR 84 |
| OSHA 1910.134 Compliant | Yes | Yes |
| Cartridge Mount | Moldex bayonet (7000/9000 series) | 3M bayonet (6000/7000/FF-400 series) |
| Price (per set, 2 cartridges) | ~$11.62/set (~$23.24 for full setup) | $19.90/pair (current sale price) |
| ESLI (End-of-Service-Life Indicator) | No | No |
| Change Schedule Required | Yes (OSHA 1910.134(d)(3)(iii)) | Yes (OSHA 1910.134(d)(3)(iii)) |
| Formaldehyde Coverage | No | No |
| Organic Vapor (OV) Sorbent | Activated carbon blend | Activated carbon blend |
| Acid Gas Sorbent | Impregnated carbon (HCl, Cl&sub2;, SO&sub2;, H&sub2;S) | Impregnated carbon (HCl, Cl&sub2;, SO&sub2;, H&sub2;S) |
| P100 Filter Efficiency | ≥99.97% (oil-proof) | ≥99.97% (oil-proof) |
| Compatible Half-Masks (examples) | Moldex 7000, 7800, 9000 series | 3M 6100/6200/6300, 7500 series, FF-402/403 |
| Upgrade Path (ESLI) | Moldex 7667 (adds ESLI + formaldehyde) | 3M 60926 (multi-gas breadth) |
| Editor Rating | 4.5 / 5 | — |
Head-to-Head Analysis
Platform Compatibility
This is the first and most important question. The Moldex 7367 uses the Moldex press-and-twist bayonet, which fits the Moldex 7000-series and 9000-series half-masks. The 3M 60923 uses the 3M bayonet, compatible with the widely deployed 3M 6000, 7500, and FF-400 series. These are not interchangeable. Purchasing the wrong cartridge for an existing respirator fleet means buying new masks as well.
If you are outfitting a new program and have no existing platform, both options are functionally equal. In that scenario, price, local distributor relationships, and the upgrade options discussed below become the deciding factors. Explore the full Moldex cartridge range or the 3M cartridge range to map out complete platform costs.
Moldex 7367
- Moldex 7000 half-mask (sizes S/M/L)
- Moldex 7800 half-mask series
- Moldex 9000 full-face (with adapter)
- Not compatible with any 3M facepiece
3M 60923
- 3M 6100 / 6200 / 6300 half-mask
- 3M 7500-series half-mask
- 3M FF-402 / FF-403 full-face
- Not compatible with any Moldex facepiece
Price Per Full Setup (Two-Cartridge Respirator Assembly)
A half-mask respirator requires two cartridges — one on each side — to complete a full assembly. Pricing comparisons must reflect that unit cost.
- Moldex 7367: ~$11.62 per set of two. One respirator assembly costs approximately $23.24 in cartridges.
- 3M 60923: $19.90 per pair (current sale price at WC Safety). One respirator assembly costs approximately $19.90 — the cartridges are sold as a pair. Regular price $49.44/pair.
At sale pricing, the 3M 60923 is competitive. At regular pricing, the Moldex 7367 is meaningfully less expensive. For high-turnover industrial programs replacing cartridges frequently, that per-unit cost difference adds up across a large workforce. Check current Moldex 7367 pricing and 3M 60923 pricing for the latest figures.
Protection Equivalence
Both cartridges are NIOSH-approved to 42 CFR 84 as OV/AG/P100 combination cartridges. The P100 element provides oil-proof particulate filtration at 99.97% efficiency — the highest efficiency class available for air-purifying respirators. The organic vapor sorbent block addresses a broad spectrum of common solvents including acetone, xylene, toluene, and most isocyanate carrier solvents. The acid gas sorbent block addresses hydrogen chloride (HCl), sulfur dioxide (SO&sub2;), chlorine (Cl&sub2;), and hydrogen sulfide (H&sub2;S).
Neither cartridge includes coverage for formaldehyde (HCHO), which requires a separate impregnated carbon bed. If your hazard inventory includes formaldehyde at any exposure level above the OSHA action level, neither the 7367 nor the 60923 is the correct cartridge. Refer to the Moldex 7667 or 3M 60926 in the upgrade path section below.
Both cartridges also provide protection against isocyanate aerosols (diisocyanate particles) via the P100 filter. Combined with organic vapor protection, they are appropriate for two-component urethane spray work per OSHA and NIOSH guidance for isocyanate spray painters. For a broader discussion of combination cartridges versus separate filter assemblies in these applications, see the combination cartridge vs separate filter guide.
Isocyanate Spray Painting Use Case
Isocyanate exposure during spray application of two-component urethane coatings (2K automotive, aerospace, industrial maintenance) involves two concurrent hazard types: isocyanate vapor (MDI, HDI, TDI monomers and oligomers) absorbed by the OV sorbent, and isocyanate aerosol (overspray mist and paint particles) captured by the P100 filter. Both the Moldex 7367 and the 3M 60923 address both pathways simultaneously.
OSHA 1910.94(c) and the supplementary OSHA and NIOSH isocyanate guidance documents specify P100 filtration as the minimum requirement for spray painting environments with isocyanate-containing coatings. Neither cartridge falls short of this standard. Selection between them remains a platform question.
Related: the Moldex 7740 P100 particulate filter provides the P100 layer only — no vapor or gas coverage — and is not appropriate as a standalone solution for isocyanate spray work where solvent vapors are present.
No-ESLI Implications
Neither the 7367 nor the 60923 includes an End-of-Service-Life Indicator (ESLI). This is a significant program management consideration, not merely a feature comparison point.
Under OSHA 1910.134(d)(3)(iii), any air-purifying respirator used for protection against gases or vapors must use either an ESLI or a written change schedule if no ESLI is present. Without an ESLI, the employer must determine cartridge change intervals using:
- Objective information documenting when sorbent breakthrough occurs (NIOSH or manufacturer breakthrough models, industrial hygiene sampling data)
- A documented written change schedule based on service life data for the specific chemical and concentration
- The schedule must account for temperature, humidity, workload, and cartridge storage conditions
This is not optional. Using a cartridge with an expired sorbent bed creates a false sense of protection. Breakthrough may occur without the wearer's awareness because organic vapors and acid gases can saturate a sorbent without producing a smell warning at concentrations that exceed occupational exposure limits.
If your program cannot reliably maintain a written change schedule, the correct choice is a cartridge with an ESLI. On the Moldex platform, the Moldex 7667 Smart Cartridge provides colorimetric ESLI plus formaldehyde coverage. No equivalent ESLI option exists on the 3M 60923 product line; the upgrade path on that side is coverage breadth (60926), not ESLI technology. This is a meaningful asymmetry between the two platforms for programs that want ESLI capability.
Upgrade Paths
Moldex 7367 → Moldex 7667
The 7667 adds colorimetric ESLI (Smart Cartridge) and formaldehyde coverage to the same OV+AG+P100 base. Same Moldex bayonet mount. Appropriate when the hazard inventory includes formaldehyde, or when written change schedule management is a program compliance burden. See the Moldex 7367 vs 7467 vs 7667 guide for a full within-series comparison.
3M 60923 → 3M 60926
The 60926 expands gas and vapor coverage to include methylamine, chlorine dioxide, and a broader multi-gas profile. Same 3M bayonet mount. No ESLI on the 60926 either — written change schedule still required. Appropriate for complex co-exposure environments with hazards beyond the OV/AG class. See the Moldex 7667 vs 3M 60926 comparison for the upgrade-tier head-to-head.
Also consider the Moldex 7300 OV+AG cartridge and the 3M 6003 OV+AG cartridge if P100 particulate filtration is not required in your hazard assessment — those cartridges cover the chemical hazards only and are less expensive per change interval.
Decision Guide
Choose Moldex 7367 if:
- Your workers already use Moldex 7000 or 9000-series respirators
- Per-unit cartridge cost is a priority factor across a large workforce
- Your program can maintain a documented written change schedule
- A future ESLI upgrade path (Moldex 7667) is important for long-term compliance management
- You want a single-platform Moldex program for procurement simplicity
Choose 3M 60923 if:
- Your workers already use 3M 6000, 7500, or FF-400 series respirators
- Your PPE program is standardized on 3M platform for servicing, training, or procurement reasons
- You are in a 3M distributor relationship with favorable pricing on the 60923
- A multi-gas coverage upgrade (3M 60926) is the more likely future need than ESLI capability
New program with no existing platform? Both cartridges deliver identical protection class. Evaluate total platform cost — respirator body + cartridges + replacement frequency — across your expected cartridge change schedule. At regular pricing, the Moldex 7367 delivers a lower per-interval cost. If the written change schedule requirement is a compliance concern, build the program around the Moldex platform and plan for the Moldex 7667 ESLI upgrade.
Frequently Asked Questions
Can I use Moldex 7367 cartridges on a 3M respirator?
No. The Moldex 7367 uses the Moldex-proprietary bayonet mount geometry, which is not compatible with 3M facepieces. The 3M 60923 uses the 3M bayonet, which fits 3M 6000, 7500, and FF-400 series masks only. Using a mismatched cartridge on any respirator compromises the seal and the protection factor. Cartridges must match the respirator manufacturer and series.
Are the Moldex 7367 and 3M 60923 chemically equivalent for isocyanate spray painting?
Yes, for the purpose of isocyanate spray paint applications. Both carry NIOSH OV/AG/P100 approval under 42 CFR 84. Both provide organic vapor absorption for isocyanate monomer vapor and P100 filtration for aerosol and particulate. Neither should be used as the sole respiratory protection measure — spray painting with isocyanates also requires supplied-air or airline respirator consideration for high-concentration environments. Consult the applicable SDS and your industrial hygienist for the specific exposure level and required APF.
Why do I need a written change schedule if there is no ESLI?
OSHA 1910.134(d)(3)(iii) requires that cartridges used for gas or vapor protection use either an ESLI or a written change schedule established before the cartridges are used. Organic vapor and acid gas sorbents can become saturated (reach breakthrough) without producing an obvious warning odor at concentrations that still exceed occupational exposure limits. A written schedule based on worst-case service life calculations — accounting for contaminant concentration, temperature, relative humidity, and workload — is required to ensure cartridges are replaced before breakthrough.
Which cartridge should I choose if my workers have both Moldex and 3M respirators in the same facility?
Standardize your program on one platform. Mixed platforms create confusion, increase the probability of cartridge-mask mismatch, and complicate training. If you cannot eliminate the platform split, use separate labeled storage for each cartridge type and ensure workers are trained on their specific respirator-cartridge pairing. In a long-term program, standardizing on a single platform reduces compliance risk and procurement complexity.
Does the P100 filter in these cartridges protect against isocyanate aerosol?
Yes. Diisocyanate aerosols and paint mist are captured by the P100 filter element at 99.97% minimum efficiency. This is the appropriate particle filter class for isocyanate spray environments. Lower-efficiency filters (R95, N95, P95) are not recommended for isocyanate spray because the very small aerosol particles present in spray painting can penetrate at higher rates through lower-efficiency media.
What is the upgrade cartridge if I also have formaldehyde in my hazard inventory?
Neither the Moldex 7367 nor the 3M 60923 provides formaldehyde (HCHO) coverage. Formaldehyde requires a cartridge with a dedicated impregnated carbon bed (typically potassium permanganate-impregnated or oxidizing carbon). On the Moldex platform, the Moldex 7667 is the upgrade. On the 3M platform, the 3M 60926 adds multi-gas breadth. Confirm formaldehyde coverage against the specific cartridge's NIOSH approval label or the manufacturer's chemical compatibility guide before use.
How long do these cartridges last in a typical spray painting shift?
Service life depends on contaminant concentration, temperature, relative humidity, breathing rate, and cartridge storage conditions. No single answer applies universally. The NIOSH respirator service life model and manufacturer service life calculators (available from both Moldex and 3M) require input of the specific chemical, its concentration, and ambient conditions. As a general practice in automotive refinishing environments, many programs use shift-based or daily replacement schedules — not because cartridges necessarily reach breakthrough within a single shift, but because it simplifies the change schedule management and eliminates the need to store partially used cartridges.
Can these cartridges be used with a full-face respirator?
Yes, with compatible full-face models on the respective platforms. The 3M 60923 is compatible with the 3M FF-402 and FF-403 full-face respirators. The Moldex 7367 is compatible with Moldex 9000-series full-face respirators with the appropriate adapter. Full-face respirators provide eye and face protection in addition to respiratory protection, which is relevant in acid mist or corrosive environments. Verify compatibility with the specific mask model before purchase.
Is one cartridge heavier or creates more breathing resistance than the other?
Breathing resistance (inhalation and exhalation) is governed primarily by the cartridge's particulate filter media and sorbent bed depth. Both cartridges operate in the same NIOSH approval class with similar sorbent bed configurations. Any perceived difference in breathing effort is more likely attributable to the facepiece seal and exhalation valve design of the specific respirator than to the cartridge itself. Workers reporting elevated breathing resistance should have their respirators fit-tested and inspected for proper cartridge seating.
What acid gases do these cartridges protect against?
Both the Moldex 7367 and the 3M 60923 provide acid gas protection for the following hazards under their 42 CFR 84 AG approval: hydrogen chloride (HCl), sulfur dioxide (SO&sub2;), chlorine (Cl&sub2;), and hydrogen sulfide (H&sub2;S). They do not specifically cover chlorine dioxide (ClO&sub2;), nitrogen dioxide (NO&sub2;), or ammonia (NH&sub3;). If these additional gas species are present in your hazard inventory, review the 3M 60926 or Moldex 7667 for broader coverage.
Can these cartridges be stored after partial use?
Storage of partially used cartridges is permissible with precautions: store in a sealed bag away from contaminant sources, at room temperature, in low humidity. However, sorbent beds continue to adsorb contaminants even during storage if not fully sealed, and humidity degrades capacity. For programs using written change schedules, partially used cartridges introduce ambiguity about remaining service life. Many industrial hygienists recommend against cartridge reuse across shifts due to the documentation burden and the risk of undetected sorbent degradation. Check your program's written change schedule for specific reuse guidance.
Where do these cartridges fit within a broader OV+AG+P100 selection?
The Moldex 7367 and 3M 60923 are the entry-level OV+AG+P100 options within their respective platforms — capable cartridges for the protection class but without ESLI or extended multi-gas coverage. For the step above, see the Moldex 7667 vs 3M 60926 guide. For a discussion of when a combination cartridge is preferable to separate cartridge-filter assemblies, see the combination cartridge vs separate filter guide. For a Moldex-internal comparison of the full 7-series lineup, see the Moldex 7367 vs 7467 vs 7667 guide.
Editorial Information
Written By
Steven Eaton
WC Safety Editorial Lead
Industrial PPE specialist; OSHA 10 & 30, respiratory protection program management, hazardous materials handling. wcsafety.com
Published / Updated
June 10, 2026
Review cycle: every 6 months or when product pricing, specifications, or regulatory status changes materially.
Methodology
Specifications verified against NIOSH approval records and manufacturer technical data sheets. Pricing sourced from WC Safety product pages at time of publication. No cartridge manufacturer provided payment or advance review of this content.
Affiliate Disclosure
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