MSA 815362 Advantage GMA-P100 Organic Vapor / P100 Cartridge Review (4.5/5)

Is the MSA 815362 Advantage GMA-P100 the right dual-hazard cartridge for your respirator?

Short answer: Yes — for Advantage-platform users facing any combination of organic vapors and airborne particulates, the MSA 815362 Advantage GMA-P100 is the highest-value cartridge in the Advantage OV stack. It pairs activated-carbon OV sorbent with a P100 particulate stage in a single snap-on cartridge body, covering the most common industrial co-exposure scenario for roughly $3 more per cartridge than the OV-only MSA 815355 GMA. If your exposure profile is strictly OV with no particulate, the 815355 saves money; if acid gas is also present, step up to the MSA Advantage GMC-P100.

Published in WC Safety product reviews · Last reviewed: June 9, 2026

The MSA 815362 Advantage GMA-P100 is the dual-hazard upgrade in MSA's snap-on Advantage cartridge lineup. It combines the same activated-carbon OV sorbent bed found in the 815355 GMA with an integrated P100 particulate filter rated at 99.97% filtration efficiency against oil and non-oil aerosols. The result is a single cartridge that covers the two most common inhalation hazard classes in industrial environments: solvent vapors and airborne particles.

The 815362 fits all five MSA Advantage respirators — the Advantage 200 LS, Advantage 420, and the Advantage 1000/3000/4000 full-face lineup — via the same snap-on press-fit mount. It does not fit MSA Comfo-series, 3M, Moldex, or any other manufacturer's respirators. This review covers what the GMA-P100 does, where it belongs in the Advantage cartridge selection hierarchy, how it compares to the closest alternatives on wcsafety.com, and the real-world scenarios that justify — or don't justify — its position as the default OV cartridge for most Advantage users.

Editorial Verdict: 4.5 / 5

The MSA 815362 Advantage GMA-P100 is the smart default OV cartridge for most Advantage-platform programs — the $3 premium over the OV-only GMA buys P100 particulate coverage that eliminates the most common single-cartridge gap in industrial OV work. NIOSH-compliant, reliable snap-on engagement, and broad Advantage platform compatibility earn it a strong 4.5. It loses half a point for the absence of ESLI and for offering no acid gas coverage — environments with OV+acid gas co-exposure need the Advantage GMC-P100.

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Who the MSA 815362 Advantage GMA-P100 is for

Browse the full MSA respirator filters and cartridges collection for the complete Advantage cartridge lineup.

• Spray painters and automotive refinishers using solvent-based coatings, clears, or primers — the canonical OV+particulate co-exposure scenario that makes a P100 stage mandatory
• Chemical coating and laminating operators in environments where both vapor off-gassing and airborne particulate (dust, pigment, overspray) are present
• Solvent-handling technicians in dusty environments — warehouses, maintenance shops, construction sites where OV tasks occur alongside general dust generation
• Safety managers standardizing a single OV cartridge SKU across mixed-task workforces — the GMA-P100 covers OV-only and OV+particulate tasks, reducing the risk of issuing the wrong cartridge to the wrong task
• Industrial hygienists with incomplete air monitoring data who need a more protective default until full exposure characterization is complete
• Advantage-platform programs stepping up from the OV-only 815355 GMA after identifying particulate co-exposures in an updated hazard assessment

What the MSA 815362 Advantage GMA-P100 does well

Integrated OV+P100 dual-hazard coverage in a single cartridge

The GMA-P100's core value proposition is the integration of two protection technologies in one snap-on body. The activated-carbon OV sorbent handles vapors; the P100 filter media handles particles at 99.97% efficiency — the highest NIOSH particulate efficiency rating, and the only efficiency class that covers oil-based aerosols (coded "P" in the NIOSH system, as opposed to "N" for non-oil-resistant or "R" for oil-resistant-limited). For spray painting, solvent degreasing with mist generation, and chemical coating work, this is the minimum protection configuration that covers both exposure vectors simultaneously.

P100 efficiency against oil-based aerosols

The "P" designation in P100 is significant: it means the filter is rated for use against oil-based aerosols, which includes many coating mists, metalworking fluids, and chemical aerosols that degrade N95 or R95 filter media over time. For spray painting with oil-based paints, lacquers, or two-component coatings, a P100-rated filter is the NIOSH-aligned choice. The 815362 delivers that P100 protection as part of the OV+P100 combination rather than requiring a separate prefilter added to an OV-only cartridge body.

Strong NIOSH certification compliance

The 815362 is approved under NIOSH 42 CFR Part 84 for both the OV and P100 classes in combination. The TC- approval certificate, verifiable on the NIOSH NPPTL Certified Equipment List, confirms that the cartridge has passed NIOSH testing for both the vapor sorbent and particulate filter components as a system. This is the foundational requirement for any OSHA 1910.134-compliant respiratory protection program.

Snap-on mount reliability across the full Advantage line

The Advantage platform's snap-on bayonet press-fit provides a clean, audible click confirmation when the 815362 is properly seated. This is a meaningful operational advantage over threaded bayonet mounts in high-glove or time-pressured donning scenarios. The same cartridge body fits the Advantage 200 LS, Advantage 420, and the Advantage 1000/3000/4000 full-face respirators — one SKU covers the entire Advantage fleet.

Modest premium over the OV-only GMA

At $19.00/cartridge vs $16.00 for the 815355 GMA, the GMA-P100 costs $3 more per cartridge — roughly 19% upcharge. For most programs, the marginal cost of the P100 stage is insignificant compared to the risk of an OV-only cartridge issued to a task with unrecognized particulate co-exposure. Programs running 10-worker crews at one cartridge pair per shift pay approximately $60 more per day with the GMA-P100 vs the GMA — a cost that is typically justified by the P100 coverage it provides.

Default selection for incomplete exposure characterization

OSHA 1910.134(d)(1) requires employers to identify and evaluate respiratory hazards in the workplace. When air monitoring is incomplete or interim, selecting the more protective cartridge is the defensible approach. The 815362 GMA-P100 is a reasonable interim-protection default for Advantage programs where OV is confirmed but particulate status is uncertain — it covers both vectors without overpaying for acid gas coverage that most OV programs do not need.

Where the MSA 815362 Advantage GMA-P100 falls short

No acid gas coverage — a gap for mixed-chemical environments

The GMA-P100 provides OV and P100 protection but zero acid gas coverage. Environments with Cl₂, HCl, SO₂, HF, or other acid gases — water treatment, semiconductor processing, pulp and paper, acid cleaning lines — require a cartridge with an acid gas sorbent stage. The correct Advantage-platform upgrade is the MSA Advantage GMC-P100, which adds acid gas coverage to the OV+P100 combination. Issuing the 815362 in an acid gas environment is a compliance failure under OSHA 1910.134(d)(1)(iii).

No ESLI — mandatory change-schedule program required

Like all current MSA Advantage cartridges, the 815362 has no colorimetric or electronic end-of-service-life indicator. The OV sorbent bed gives no perceptible breakthrough warning before failure — workers cannot smell or see when the activated carbon is spent. A documented change-schedule program per OSHA 1910.134(d)(3)(iii) is not optional; it is a compliance requirement. Programs that issue the 815362 without a written change schedule are out of compliance regardless of how well the cartridge performs during its service life.

Platform lock-in to the Advantage snap-on system

The 815362 cannot be used on any respirator outside the MSA Advantage platform. Facilities with mixed fleets (Comfo-series + Advantage) must stock both the 815362 and the Comfo GMA-P100 (815178) to cover both respirator types. Cross-installation is physically blocked by the incompatible mount geometries, but the storeroom complexity of maintaining two OV+P100 SKUs for two platforms creates ordering and issuance risk.

Slightly higher per-cartridge cost than Comfo GMA-P100 at scale

The Comfo GMA-P100 (815178) is available at $20.10/cartridge. The 815362 is $19.00/cartridge — the Advantage variant is actually slightly cheaper per cartridge at 2-pack sizing. For high-volume programs, the difference is negligible, but the comparison illustrates that the Advantage platform does not always carry a cost premium over Comfo at the OV+P100 tier.

MSA 815362 vs. the competitive set: OV+P100 cartridges on WC Safety

All products below are stocked on wcsafety.com. Cross-platform comparison — mount compatibility is the primary selection filter before chemistry.

Mount-system note: the 815362 is compatible only with MSA Advantage respirators. The Comfo GMA-P100 (815178) is compatible with MSA Comfo-series respirators only. The 3M 60921 is compatible with 3M 6000/7000-series respirators only. No cross-brand cartridge pairing is supported.

MSA Advantage GMA family: OV vs OV+P100

The Advantage GMA family has two members. The sole functional difference is the P100 particulate stage in the 815362:

• Buy the MSA 815362 GMA-P100 if: any particulate co-exposure exists (spray mist, dust, fume, aerosol), you are spray painting or automotive refinishing, or you want a single OV cartridge SKU that handles both OV-only and OV+particulate tasks without risking under-protection.
• Buy the MSA 815355 GMA if: your IH sampling definitively confirms OV as the sole hazard with no particulate generation, and you are cost-optimizing a high-volume program where $3/cartridge savings are material at scale.

Shop the Advantage GMA series on Amazon → MSA 815355 GMA MSA 815362 GMA-P100

Compatible MSA Advantage respirators and accessories

The 815362 snaps onto every current MSA Advantage respirator. Below are the verified compatible respirators and accessories stocked on WC Safety:

• MSA Advantage 200 LS half-mask respirator (SKU 815696) — primary low-profile half-mask; APF 10 with GMA-P100
• MSA Advantage 420 half-mask respirator
(SKU 10102182) — mid-range half-mask with enhanced face seal
• Advantage 1000, 3000, 4000 full-face respirators — APF 50 at full-face; higher protection factor for concentrated solvent environments

Accessories that complement the 815362 on Advantage respirators:

• MSA Advantage P100 low-profile filter (2-pack) — standalone P100 filter for tasks where OV cartridge + separate P100 filter combination is preferred
• MSA Advantage P100 low-profile filter (100-pack) — high-volume P100 filter procurement
• MSA Advantage P100 filter splash guard — liquid splash protection for P100 filters
• MSA Advantage N95 snap-on prefilter (10-pack) — lighter N95 prefilter when P100 efficiency is not required for a secondary task
• MSA Advantage R95 snap-on filter (20-pack) — R95 oil-resistant filter for moderate particulate tasks
• MSA Advantage R95 reusable snap-on cover — reusable cover for R95 filter elements

Top compatible MSA Advantage items on Amazon → Advantage 200 LS Advantage 420 Advantage P100 Filter

OV+P100 vs. OV-only vs. combination cartridges: where the GMA-P100 sits in the stack

MSA's Advantage cartridge lineup follows NIOSH classification from single-chemistry to multi-gas. The GMA-P100 occupies the OV+P100 tier — the second rung from the bottom of the organic vapor stack, above the OV-only GMA and below the OV+AG+P100 GMC-P100:

• MSA 815355 GMA — OV only | $16.00/cartridge
• MSA 815362 GMA-P100 — OV + P100 | $19.00/cartridge (this product)
• MSA 815357 GMC — OV + Acid Gas | pricing varies
• MSA Advantage GMC-P100 — OV + AG + P100 | highest combination OV tier
• MSA Advantage GME — multi-gas combination | specialty environments
• MSA Advantage GME-P100 — multi-gas + P100 | broadest Advantage coverage

For the Comfo-series equivalents (bayonet mount), the parallel OV+P100 cartridge is the MSA Comfo GMA-P100 (815178) at $20.10/cartridge. The two are chemically equivalent but mechanically incompatible — mount system determines which to stock, not chemistry preference.

Total cost of ownership: MSA 815362 replacement schedule and per-shift cost

The 815362 has two consumable elements: the activated-carbon OV sorbent (which has a finite adsorption capacity) and the P100 filter media (which has a finite particulate loading capacity). The more restrictive limit applies:

• OV sorbent service life: determined by the written change schedule per OSHA 1910.134(d)(3)(iii) — typically 8-hour shift-change for standard OV tasks at PEL-level concentrations
• P100 filter life: determined by increased breathing resistance (pressure drop); most users change at the same interval as the OV sorbent unless visible loading occurs earlier
• Per-shift cost at $19.00/cartridge: pair-change (2 cartridges) = $38.00/shift. At 250-day/year full-shift replacement: $9,500/year/worker. Programs with multiple daily OV tasks should calculate against total shifts to confirm whether a higher-volume SKU (if available) or alternate platform reduces cost.
• Comparison to Comfo GMA-P100: the Comfo GMA-P100 (815178) at $20.10/cartridge is $2.20 more per cartridge — negligible difference at 2-pack sizing; programs on the Advantage platform should not switch platforms to save $4.40/shift.

For bulk Advantage filter procurement, the Advantage P100 low-profile filter (100-pack) is available for programs that prefer to use OV cartridges with separate P100 prefilters rather than the integrated GMA-P100 body.

Final verdict: MSA 815362 Advantage GMA-P100 Organic Vapor / P100 Cartridge

Rating: 4.5 / 5. The MSA 815362 Advantage GMA-P100 is the recommended default OV cartridge for most Advantage-platform industrial programs. The $3 premium over the OV-only GMA buys P100 coverage that eliminates the most common single-cartridge protection gap — unrecognized particulate co-exposure — for a cost that most programs will find inconsequential. The 4.5 rating reflects the cartridge's strong NIOSH certification, dual-hazard utility, and platform-wide compatibility; the 0.5-point deduction reflects the absence of ESLI and the acid gas gap that exposes a real limitation in mixed-chemical environments.

• Buy the MSA 815362 GMA-P100 if: any particulate exposure exists alongside OV, you are spray painting, automotive refinishing, or working in any environment where both vapors and particles are present, or you want a single OV cartridge SKU that handles the broadest range of Advantage-platform OV tasks.
• Buy the MSA 815355 GMA if: air monitoring definitively confirms OV as the only hazard with no particulate, and per-cartridge cost savings are material to your program budget.
• Buy the MSA Advantage GMC-P100 if: any acid gas co-exposure (Cl₂, HCl, SO₂, HF) is documented alongside OV and/or particulate — the GMC-P100 adds the acid gas sorbent stage that the GMA-P100 lacks.
• Consider the MSA Comfo GMA-P100 (815178) if: your fleet uses Comfo-series respirators rather than Advantage — same OV+P100 chemistry, different mount.

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Frequently asked questions: MSA 815362 Advantage GMA-P100 Cartridge

Does the MSA 815362 Advantage GMA-P100 protect against acid gases?

No. The 815362 provides OV (organic vapor) and P100 particulate protection only. It contains no acid gas sorbent and offers zero protection against Cl₂, HCl, SO₂, HF, or other acid gases. If your exposure assessment includes any acid gas, you need the MSA Advantage GMC-P100, which adds an acid gas sorbent stage to the OV+P100 combination.

MSA 815362 Advantage GMA-P100 vs. MSA 815355 Advantage GMA — which should I buy?

Both are NIOSH-approved snap-on Advantage cartridges with the same OV sorbent. The 815362 adds a P100 particulate stage for $3/cartridge more. If any particulate co-exposure exists — spray mist, dust, fume — buy the 815362. If air monitoring definitively confirms OV as the only hazard with no particulate, the 815355 GMA at $16.00/cartridge saves money. When in doubt, the 815362 is the more defensible default.

What respirators is the MSA 815362 compatible with?

The 815362 is compatible exclusively with MSA Advantage-platform respirators: the Advantage 200 LS, Advantage 420, and the Advantage 1000, 3000, and 4000 full-face respirators. It is not compatible with MSA Comfo Classic, Comfo II, Ultra-Twin, Ultra-Elite, or any 3M, Moldex, or other brand respirator.

Is the MSA 815362 GMA-P100 appropriate for spray painting?

Yes — this is the primary application for OV+P100 combination cartridges. Spray painting with solvent-based coatings generates both organic vapors (from the solvent carriers) and atomized paint mist (a particulate). The 815362 covers both hazard vectors. It meets OSHA 1910.94 requirements for spray-finishing respiratory protection when used with a properly fit-tested Advantage respirator. For isocyanate-containing two-component coatings, consult your SDS and confirm that OV+P100 is the recommended combination per the coating manufacturer and your IH.

What is the P100 efficiency rating and what does it mean?

P100 is the highest NIOSH particulate efficiency class: 99.97% filtration efficiency tested against the most penetrating aerosol size (approximately 0.3 microns). The "P" designates that the filter is rated for use in oil-containing environments (as opposed to "N" = not oil-resistant, "R" = oil-resistant for a limited time). For spray painting with oil-based coatings, metalworking fluid aerosols, or any oil-mist environment, P100 is the appropriate particulate class. N95 and R95 filters are not rated for oil aerosol environments.

How does the MSA 815362 compare to the MSA Comfo GMA-P100 (815178)?

The MSA Comfo GMA-P100 (815178) is the Comfo-platform equivalent — same OV+P100 chemistry, different mount. The 815178 uses a threaded bayonet mount for Comfo-series respirators; the 815362 uses a snap-on press-fit for Advantage-series respirators. They are physically incompatible. Choose based on your respirator fleet: Advantage respirators take 815362; Comfo respirators take 815178. At 2-pack pricing, the Advantage 815362 ($19.00/cartridge) is slightly cheaper than the Comfo 815178 ($20.10/cartridge).

How does the MSA 815362 compare to the 3M 60921 OV/P100 cartridge?

Both are NIOSH OV+P100 combination cartridges, but they use incompatible mount systems. The 3M 60921 fits only 3M 6000/7000-series respirators; the 815362 fits only MSA Advantage respirators. If your respirators are 3M, use the 3M 60921. If your respirators are MSA Advantage, use the 815362. Do not mix brands across the cartridge-to-respirator interface. The underlying OV+P100 chemistry is equivalent for practical industrial purposes.

Does the MSA 815362 have an end-of-service-life indicator (ESLI)?

No. The 815362 has no colorimetric or electronic ESLI. Cartridge replacement must be managed through a written change-schedule program per OSHA 29 CFR 1910.134(d)(3)(iii). The change schedule must account for contaminant concentration, relative humidity, temperature, workload intensity, and any cartridge storage history. A CIH should be consulted to establish the facility-specific change schedule for your application.

Can I use the MSA 815362 for automotive refinishing work?

Yes. Automotive refinishing is one of the core applications for OV+P100 combination cartridges. It generates solvent vapors from primers, basecoats, and clearcoats alongside atomized spray mist. The 815362 covers both. NIOSH and OSHA guidance for automotive spray painting recommend OV+P100 (or higher) combination respiratory protection. Ensure your Advantage respirator is properly fit-tested and that your paint system's SDS does not specify additional protection beyond OV+P100 (some isocyanate clearcoats specify a combination cartridge with specific organic vapor coverage — verify with your IH).

What is the Assigned Protection Factor for the MSA 815362 cartridge?

The APF is a property of the respirator facepiece, not the cartridge. An Advantage half-mask (200 LS or 420) with the 815362 delivers APF 10 per OSHA 1910.134 Appendix B — usable when airborne concentrations are up to 10 times the OEL. An Advantage full-face respirator (1000, 3000, or 4000) with the 815362 delivers APF 50, providing 5x greater protection factor for higher-concentration environments. The respirator must be properly fit-tested to claim the stated APF.

Is the MSA 815362 appropriate for welding fume?

P100 filtration in the 815362 effectively captures metal fume particulates, including those generated during welding. However, welding also generates CO, ozone, and nitrogen oxides — none of which are captured by OV or P100 cartridges. For welding fume, a P100 particulate filter (without the OV stage) or a P100+OV combination is appropriate for the metal fume and any solvent vapors present, but engineering controls (ventilation) are the primary control for gaseous welding byproducts. Review your welding SDS and consult your IH before specifying the 815362 as the sole welding fume control.

How do I know if I need the GMA-P100 or the GMC-P100 for my application?

The decision is driven by your hazard assessment. If your IH sampling or SDS review identifies both organic vapors and acid gases (Cl₂, HCl, SO₂, HF, or similar), the MSA Advantage GMC-P100 is the required cartridge — it adds the acid gas sorbent that the GMA-P100 lacks. If acid gas is absent from the documented exposure profile, the 815362 GMA-P100 is sufficient and more cost-effective. When in doubt, the GMC-P100 is the more protective and legally defensible choice.

What other Advantage cartridge variants should I consider alongside the 815362?

The full Advantage vapor/gas cartridge stack on WC Safety includes: the GMB acid gas only, GMB-P100 acid gas + P100, GMD ammonia/methylamine, GME multi-gas, GME-P100 multi-gas + P100, MerSorb mercury/chlorine + P100, and the GMI radioiodine + P100. All are snap-on Advantage-platform compatible.

Can I use the MSA 815362 for chemical coating in a dusty environment?

Yes — this is a good fit. Chemical coating generates both solvent vapors and overspray/airborne particulate; a dusty environment adds general particulate to the mix. The 815362 handles both the OV and particulate vectors. Confirm that the coating chemicals do not include acid gas precursors, and verify the OV sorbent covers the specific solvent formulation used. If your coating contains isocyanates, review the specific respiratory protection requirements in the product SDS and consult your IH — some two-component coatings require a higher APF or specific cartridge formulation.

Where does the MSA 815362 sit in the WC Safety MSA Advantage cartridge silo?

The 815362 is the OV+P100 tier of the Advantage snap-on cartridge family, sitting between the OV-only 815355 GMA and the OV+AG+P100 Advantage GMC-P100 in the organic vapor stack. The full Advantage cartridge collection is in the MSA respirator filters and cartridges collection.

Is the MSA 815362 the right cartridge for industrial chemical coating and laminating?

For most chemical coating and laminating operations involving solvent-based adhesives, resins, or coatings where both vapors and particulate (overspray, aerosol) are generated, the 815362 is the appropriate entry-level combination cartridge. Review the specific chemicals in your process — if acid gas precursors, formaldehyde above the TLV, or ammonia are present, the exposure assessment will point to a higher-tier combination cartridge. The 815362 is a strong default for the OV+particulate-dominated scenario that covers the majority of coating and laminating applications.