MSA Cartridge Review

Is the MSA 815182 GME-P100 the right multi-gas cartridge when both inorganic gases and particulates are in your hazard assessment?

Short answer: Yes — when your documented hazards include two or more inorganic reactive gases and respirable particulates or aerosols simultaneously, the MSA 815182 GME-P100 is the correct single-cartridge answer on the MSA Comfo platform. It delivers the same nine-gas inorganic sorbent as the MSA 492790 GME with an integrated P100 filter (≥99.97% particulate efficiency) in one bayonet unit. The critical limitation to understand upfront: the GME-P100 contains no organic vapor sorbent — facilities with both VOC and inorganic gas exposure need a different selection. For pure inorganic gas environments without dust, the GME gas-only cartridge at a fraction of the cost is the better value. For nuclear/tritium applications, the MSA 806059 GMT adds tritium sorbent.

The MSA 815182 GME-P100 is the most protective standard-issue cartridge in MSA's Comfo-platform GM-series lineup for facilities dealing with mixed inorganic gas and particulate co-exposure. Sold in boxes of six at $189.43 ($31.57 per cartridge), it combines nine-gas inorganic sorbent chemistry — the same NIOSH-approved formulation as the MSA 492790 GME — with an integrated P100 particulate filter in a single bayonet-mount unit. This review covers where the 815182 is the correct specification, its most important limitation (no organic vapor coverage), how it compares against GM-series siblings and cross-brand competition including the 3M 60926, and the compatible Comfo-platform facepieces it serves.

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Editorial verdict — MSA 815182 GME-P100: 4.6/5
The MSA 815182 GME-P100 is the definitive Comfo-platform cartridge for mixed inorganic gas and particulate environments — nine NIOSH-approved gas chemistries plus integrated P100 filtration in one unit. The only significant limitation is the absence of organic vapor coverage: facilities with VOC co-exposure cannot use this cartridge as a complete solution. When the hazard profile is purely inorganic gas plus particulate, it is difficult to improve on the 815182 within the MSA ecosystem.

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Who the MSA 815182 GME-P100 is for

• Wastewater treatment operators in environments where ammonia off-gassing, hydrogen sulfide, chlorine disinfection, and biosolid aerosols or fine particulate are all simultaneously documented
• Water treatment plant workers exposed to chlorination gases and chloramine formation dust or chemical particulate
• Pulp-and-paper mill workers where process gases (ClO₂, SO₂, H₂S) co-exist with wood fiber dust, paper dust, or chemical particulate
• Chemical manufacturing workers handling inorganic acids, alkalis, and inorganic reactive gases in dusty processing environments
• Emergency responders deploying to inorganic chemical incidents where the specific release chemistry is uncertain and particulate contamination (building dust, chemical solids) is a co-hazard
• Industrial hygiene programs seeking a single compliant cartridge specification for facilities where the documented hazard range is wide-spectrum inorganic gas plus particulate — a single SKU simplifies purchasing, inventory, and written program documentation

Not the right pick for: Organic vapor exposure, mercury vapor, radioiodine, carbon monoxide, or any application involving organic solvents. Browse the full MSA respirator filters and cartridges collection for OV, OV+AG, mercury, and specialty cartridge alternatives.

What the MSA 815182 GME-P100 does well

Complete dual-hazard coverage: nine inorganic gases plus P100 in one cartridge

The 815182 is NIOSH-approved under 42 CFR Part 84 against nine inorganic and reactive gas chemistries — chlorine (Cl₂), sulfur dioxide (SO₂), chlorine dioxide (ClO₂), hydrogen chloride (HCl), hydrogen sulfide (H₂S), ammonia (NH₃), methylamine (CH₃NH₂), formaldehyde (HCHO), and hydrogen fluoride (HF) — with an integrated P100 filter rated ≥99.97% efficient at 0.3 μm. This is the same nine-gas sorbent as the MSA 492790 GME; the 815182 adds the P100 layer without sacrificing any gas-phase coverage. For programs where both hazards are documented, a single GME-P100 cartridge satisfies the full NIOSH approval requirement — no stacking of separate filter discs, no second retainer assembly, no additional maintenance item.

Integrated P100 eliminates filter-stacking complexity and error risk

The alternative to the GME-P100 for combined gas + particulate protection is attaching a separate MSA Low Profile P100 filter disc to a gas-only GME cartridge. That approach requires correct filter selection, proper retainer assembly, and worker discipline to perform the stacking before every use. The GME-P100 eliminates all of this — the P100 layer is factory-integrated and cannot be omitted or incorrectly assembled. For large or multi-shift programs where consistent assembly is a practical challenge, the integrated cartridge architecture meaningfully reduces compliance risk.

Formaldehyde and HF coverage — critical for specific facility types

The nine-gas list includes two chemicals that require specific callout. Formaldehyde (HCHO) is an OSHA regulated substance under 29 CFR 1910.1048 and an IARC Group 1 carcinogen (confirmed human carcinogen) — correct cartridge selection for formaldehyde exposure is a compliance requirement, and the GME-P100 covers it. Hydrogen fluoride (HF) is among the most rapidly tissue-destructive industrial chemicals; it has a low immediately dangerous to life and health (IDLH) value of 30 ppm and can cause systemic toxicity at low vapor concentrations. The GME-P100's HF coverage is notable in semiconductor fabrication, glass etching, and petrochemical refining applications where HF co-exists with particulate.

Better per-unit value than the GMD-P100 for multi-gas programs

An important and counterintuitive finding: the MSA 815182 GME-P100, at $31.57 per cartridge, is actually less expensive than the MSA 815181 GMD-P100 ($37.86/unit) while providing dramatically broader gas coverage — nine gases vs two. For any program where the hazard extends beyond ammonia/methylamine alone, the GME-P100 is simultaneously more protective and lower cost than the GMD-P100. This is one of the clearest buy-up decisions in the MSA GM-series lineup. Read the MSA GMD-P100 review for the scenario where ammonia-only coverage is the correct specification.

Full Comfo platform compatibility — half-mask to full-face without cartridge change

The GM bayonet mount gives the 815182 the same platform breadth as all other GM-series cartridges. A program can run half-mask Comfo Classic facepieces (APF 10) for routine monitoring tasks and MSA Ultra-Elite full-face (APF 50) for higher-concentration or emergency scenarios, using the identical GME-P100 cartridge in both configurations. The written program specification remains unchanged; only the facepiece changes with the protection-factor requirement.

Where the MSA 815182 GME-P100 falls short

No organic vapor coverage — the most critical limitation

This limitation is worth stating plainly and prominently: the MSA 815182 GME-P100 contains no organic vapor sorbent. Hydrocarbons, solvents (acetone, MEK, toluene, xylene, petroleum distillates), and any other VOC will pass through the GME-P100 cartridge without being captured. In facilities where organic solvents co-exist with inorganic gas hazards — common in chemical manufacturing, laboratory settings, and general industrial maintenance — the GME-P100 is an incomplete and potentially dangerous specification.

For OV + acid gas combinations on the Comfo platform, the MSA GMC-P100 addresses OV plus acid gas plus P100, though its inorganic gas list does not match the full nine-gas GME breadth. For the broadest multi-gas coverage including OV on a different platform, the 3M 60926 is the cross-brand benchmark that adds OV to a multi-gas + P100 combination — but requires 3M facepieces. See the 3M 60926 review for the full comparison.

No ESLI — change-out schedule is mandatory

Like all GM-series cartridges, the 815182 has no end-of-service-life indicator. Several of the nine gases covered — hydrogen fluoride, chlorine dioxide, formaldehyde — can cause serious injury before sensory warning properties provide reliable detection at all concentrations. A written, validated change-out schedule is not optional under OSHA 29 CFR 1910.134(d)(3)(iii) when using this cartridge in any formal respiratory protection program. In multi-gas environments where several species load the sorbent simultaneously, change-out intervals will typically be shorter than for single-gas exposure at the same individual TWA.

No mercury vapor or radioiodine coverage

Mercury vapor and radioiodine require dedicated specialty sorbents not present in the GME-P100. For mercury vapor applications (chlor-alkali plants, fluorescent lamp recycling, certain mining operations), the MSA Mersorb P100 is the correct Comfo-platform selection. For radioiodine, the MSA GMI-P100 is the appropriate cartridge. The GME-P100 should not be substituted for either specialty application. See the MSA Mersorb P100 review for mercury-specific programs.

Higher cost than the gas-only GME when particulate is not documented

At $31.57 per cartridge versus approximately $2.45 for the MSA 492790 GME (gas-only), the P100 integration adds approximately $29.12 per unit. When respirable particulate is genuinely not a documented hazard, that premium produces no compliance benefit. The GME-P100 is the right specification only when the hazard assessment confirms both inorganic gas and particulate exposure. Over-specifying to the P100 tier as a precaution against undocumented particulate is a sign that the hazard assessment needs to be updated, not that the higher-cost cartridge is universally the safer choice.

MSA 815182 GME-P100 vs competitive multi-gas P100 cartridges

Key comparison note: The 3M 60926 adds organic vapor coverage that the MSA GME-P100 lacks — if OV is in your documented hazard profile and you are willing to use 3M facepieces, the 60926 is the more complete specification. Read the 3M 60926 review for the full cross-platform analysis. The MSA Advantage GME-P100 uses a snap-on mount for MSA Advantage platform facepieces — not interchangeable with the Comfo bayonet.

MSA GME-P100 on Amazon → 3M 60926 on Amazon → MSA Advantage GME-P100 on Amazon →

MSA Comfo multi-gas family: GME vs GME-P100 vs GMT

• Buy the MSA 492790 GME if: Documented hazards are inorganic gases only — no particulate, no aerosol, no OV. The ~$2.45/unit cost makes the GME the highest-value entry point for multi-gas inorganic programs. Read the MSA GME review.
• Buy the MSA 815182 GME-P100 if: Both inorganic gases and respirable particulates or aerosols are documented. The integrated P100 eliminates filter-stacking complexity. At $31.57/unit it is also lower cost than the MSA GMD-P100 while covering nine gases instead of two — the clear buy-up when hazard breadth warrants it.
• Buy the MSA 806059 GMT if: Your facility involves tritium (³H) — nuclear power plants, nuclear medicine, or tritium-handling operations. The GMT's premium ($39.47/unit) is only warranted for its tritium-specific sorbent. See the MSA GMT review.

Shop the Comfo multi-gas series on Amazon → MSA GME (gas only) MSA GME-P100 MSA GMT

Compatible respirators for the MSA 815182 GME-P100

The MSA 815182 GME-P100 uses the MSA GM bayonet mount — compatible with the full Comfo respirator platform:

• MSA Comfo Classic — half-mask, APF 10
• MSA Comfo II — half-mask, APF 10
• MSA Advantage 200 LS — verify GM bayonet compatibility with current MSA documentation before ordering; the Advantage 200 LS may use a different mount than the standard Advantage snap-on series
• MSA Ultra-Elite — full-face, APF 50; raises protection factor from 10× to 50× while using the identical GME-P100 cartridge
• MSA Ultra-Twin — full-face, APF 50, dual bayonet configuration

The GME-P100 does not fit MSA Advantage snap-on facepieces. For the MSA Advantage 420 or other Advantage platform respirators, the parallel specification is the MSA Advantage GME-P100 snap-on cartridge. The 815182 also does not fit 3M bayonet facepieces or Moldex facepieces.

Top compatible Comfo respirators on Amazon → MSA Comfo Classic MSA Ultra-Elite MSA Advantage 200 LS

GME-P100 in context: inorganic multi-gas plus particulate category

The "multi-gas inorganic plus P100" cartridge category serves the specific intersection of two simultaneous hazard types — reactive inorganic gases and respirable aerosols or dusts — in one NIOSH-approved unit. Within the MSA Comfo ecosystem, the GME-P100 is the primary entry in this category for standard industrial applications. Its nine-gas sorbent spans both acid gases (chlorine family, sulfur family, hydrogen fluoride) and alkaline gases (ammonia, methylamine), covering virtually the entire reactive inorganic gas hazard spectrum encountered in municipal and industrial settings.

The key context for purchasing decisions is the organic vapor gap. Across the entire GM-series lineup — GMA through GMT — no Comfo-platform cartridge combines all three of: multi-gas inorganic coverage, P100 particulate, and organic vapor. The MSA GMC-P100 provides OV plus acid gas plus P100 but does not match the GME's nine-gas breadth or alkaline gas coverage. This is a genuine gap in the MSA Comfo lineup that is relevant for facilities with VOC co-exposure — for those applications, the 3M 60926 (3M platform) is the cross-brand benchmark to evaluate. See the 3M 60926 review.

For specialty chemical hazards outside the nine-gas GME scope — mercury vapor and radioiodine — see the MSA Mersorb P100 and MSA GMI-P100 respectively.

Total cost of ownership: MSA 815182 GME-P100

The GME-P100 is sold in boxes of six at $189.43, working out to $31.57 per cartridge. A full two-cartridge change-out for a paired half-mask or full-face program costs $63.14 per event.

Change-out frequency considerations:

• Sorbent loading from multiple gas species: In multi-gas environments where several of the nine documented species are simultaneously present, each species contributes to sorbent depletion. A wastewater treatment operator exposed to ammonia, H₂S, and chlorine simultaneously will exhaust the sorbent faster than an operator exposed to a single gas at the equivalent individual TWA. Change-out schedules must account for the combined loading.
• Particulate loading: In heavy-dust environments, P100 filter loading may precede gas sorbent exhaustion, manifesting as increased breathing resistance. This is the practical end-of-service signal for the P100 layer — when breathing resistance increases noticeably, the cartridge should be replaced regardless of the gas sorbent's remaining service life.
• Humidity: Elevated relative humidity reduces the effective sorbent capacity for some gas species. In high-humidity industrial environments (aerated digesters, spray-cooling systems), shorter change-out intervals are warranted.

TCO comparison vs gas-only GME: If particulate exposure turns out not to be significant after formal air monitoring, switching from GME-P100 to the gas-only MSA 492790 GME saves approximately $29.12 per cartridge — roughly a 92% reduction in cartridge cost for the same gas-phase protection. This reinforces the importance of a thorough initial hazard assessment. The MSA GME review covers the gas-only option in full.

Final verdict: MSA 815182 GME-P100

The MSA 815182 GME-P100 earns a 4.6/5 rating as the most capable standard-issue cartridge in the MSA Comfo lineup for mixed inorganic gas and particulate environments. Nine NIOSH-approved gas chemistries, integrated P100 filtration, Comfo platform breadth from half-mask to full-face, and a per-unit cost that is actually lower than the narrower GMD-P100 — the 815182 is difficult to argue against when its use case is confirmed by a complete hazard assessment.

The 0.4-point deduction is justified by the organic vapor gap — the single most important limitation and the most common misspecification risk for buyers moving from a 3M ecosystem where the 3M 60926 adds OV to its multi-gas P100 formulation. No ESLI and no mercury or radioiodine coverage are additional real limits, though they affect a narrower set of applications. When the hazard profile is genuinely inorganic gas plus particulate with no OV component, the MSA 815182 GME-P100 is the correct specification and a strong performer at its price point.

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Frequently asked questions: MSA 815182 GME-P100

What gases does the MSA 815182 GME-P100 protect against?

The MSA 815182 GME-P100 is NIOSH-approved under 42 CFR Part 84 against nine inorganic and reactive gases: chlorine (Cl₂), sulfur dioxide (SO₂), chlorine dioxide (ClO₂), hydrogen chloride (HCl), hydrogen sulfide (H₂S), ammonia (NH₃), methylamine (CH₃NH₂), formaldehyde (HCHO), and hydrogen fluoride (HF). It also provides integrated P100 particulate filtration (≥99.97% at 0.3 μm). It does not protect against organic vapors, carbon monoxide, mercury vapor, or radioiodine.

Does the MSA GME-P100 protect against organic vapors?

No — and this is the most important limitation to verify before specifying the 815182. The GME-P100 contains no organic vapor sorbent. VOCs, solvents, hydrocarbons, and other organic compounds pass through the cartridge unfiltered. For facilities with both organic vapor and inorganic gas co-exposure, a different cartridge specification is required. On the MSA Comfo platform, the MSA GMC-P100 addresses OV plus acid gas plus P100, though it does not match the GME's nine-gas breadth. For the broadest OV + multi-gas + P100 coverage, the 3M 60926 on the 3M platform is the cross-brand benchmark.

MSA GME-P100 vs MSA GME — what is the difference?

The MSA 492790 GME provides the same nine-gas inorganic sorbent without an integrated P100 filter, at approximately $2.45 per cartridge. The MSA 815182 GME-P100 adds the integrated P100 layer for $31.57 per cartridge — a $29.12 premium per unit. Choose the GME when particulate is not a documented hazard; choose the GME-P100 when particulate or aerosol is also present. Read the full MSA GME review for the gas-only scenario analysis.

Is the MSA 815182 GME-P100 NIOSH-approved?

Yes. The MSA 815182 GME-P100 is NIOSH-approved under 42 CFR Part 84 for the listed nine gas chemistries and for P100 particulate filtration. Verify the current approval certificate and TC-number on the NIOSH NPPTL Certified Equipment List before including in a formal written respiratory protection program.

What is the GTIN for the MSA 815182 GME-P100?

The GTIN for the MSA 815182 GME-P100 is 641817011089. The manufacturer SKU is 815182. Use these values when verifying against the NIOSH CEL or entering into procurement systems.

What respirators are compatible with the MSA 815182 GME-P100?

The MSA 815182 GME-P100 uses the MSA GM bayonet mount and is compatible with: MSA Comfo Classic (half-mask, APF 10), MSA Comfo II (half-mask, APF 10), MSA Ultra-Elite (full-face, APF 50), and MSA Ultra-Twin (full-face, APF 50). It is not compatible with MSA Advantage snap-on facepieces, 3M bayonet facepieces, or Moldex facepieces.

MSA GME-P100 vs 3M 60926 — which should I use?

The 3M 60926 adds organic vapor coverage that the MSA GME-P100 lacks — if OV is in your documented hazard profile, the 3M 60926 on a 3M facepiece is the more complete specification. If OV is not a documented hazard and you are running an MSA Comfo platform, the GME-P100 is the correct and platform-appropriate choice. If you are considering switching platforms from 3M to MSA, verify that the hazard coverage difference (OV gap) is acceptable before specifying. See the 3M 60926 review for the full cross-platform analysis.

Is the MSA GME-P100 appropriate for wastewater treatment work?

Yes — wastewater treatment is the primary application for the GME-P100 when particulate co-exposure is documented. Wastewater operations typically generate ammonia, hydrogen sulfide, and chlorine gas hazards alongside biosolid aerosols or fine particulate from biosolids handling, filter media, and aeration equipment. The GME-P100 addresses all of these in a single cartridge. Verify whether organic chemical co-exposure exists in the specific work zone before finalizing the specification.

Does the MSA GME-P100 protect against mercury vapor?

No. Mercury vapor requires a dedicated Mersorb (activated charcoal impregnated with mercury-specific sorbent) cartridge. The MSA Mersorb P100 is the correct Comfo-platform selection for mercury vapor applications. The GME-P100 should not be substituted for mercury vapor exposure. See the MSA Mersorb P100 review.

Can the MSA GME-P100 be used in IDLH atmospheres?

No. The GME-P100 is an air-purifying respirator and cannot be used in IDLH atmospheres or oxygen-deficient environments (below 19.5% O₂). Under OSHA 29 CFR 1910.134(d)(2)(i), only a full-face pressure-demand SCBA or a combination supplied-air respirator with an auxiliary self-contained air supply is acceptable in IDLH conditions.

How does the MSA GME-P100 compare to the MSA GMD-P100 in terms of value?

The MSA 815182 GME-P100, at $31.57 per cartridge, is less expensive than the MSA 815181 GMD-P100 ($37.86/unit) while covering nine inorganic gases versus the GMD-P100's two (ammonia and methylamine only). For any program where the hazard assessment extends beyond ammonia and methylamine, the GME-P100 is simultaneously broader in coverage and lower in cost — one of the clearest buy-up decisions in the MSA lineup. The GMD-P100 is only the correct specification when the hazard is exclusively ammonia/methylamine with no other inorganic gas component. Read the MSA GMD-P100 review for the narrower alkaline-gas-only scenario.

How should I schedule cartridge changes with the MSA GME-P100?

A written change-out schedule is required under OSHA 29 CFR 1910.134(d)(3)(iii) because the GME-P100 has no ESLI. In multi-gas environments, sorbent depletion is accelerated by simultaneous loading from multiple species — a change-out schedule based on a single-gas model may be non-conservative. Many programs in wastewater treatment and chemical plants use per-shift replacement as the simplest compliant approach. Consult a Certified Industrial Hygienist (CIH) for a concentration-based schedule using validated service-life models.

Is the MSA GME-P100 suitable for pulp-and-paper mill operations?

Yes — pulp-and-paper mills processing with the kraft process generate chlorine dioxide, sulfur dioxide, and hydrogen sulfide as process gases, often with wood fiber and chemical dust particulate co-exposure. The GME-P100's nine-gas coverage addresses all documented inorganic gas hazards, and the integrated P100 covers the particulate component. Verify OV absence in the specific work zone — if chemical solvent exposure exists in addition to the inorganic gas profile, the GME-P100 is an incomplete specification.

Does the MSA GME-P100 protect against hydrogen fluoride?

Yes. Hydrogen fluoride (HF) is one of the nine gases in the GME-P100 sorbent. This makes the GME-P100 relevant in semiconductor fabrication, glass etching, and petrochemical refinery applications where HF co-exists with other inorganic reactive gases and particulate. HF has an IDLH of 30 ppm and causes rapid systemic toxicity; verify the full documented hazard assessment carefully and ensure the written change-out schedule accounts for the HF concentration when HF is the limiting species.

MSA GME-P100 vs MSA Advantage GME-P100 — what is the mount difference?

The MSA 815182 GME-P100 uses the MSA GM bayonet mount — it is designed for the Comfo platform (Comfo Classic, Comfo II, Ultra-Elite, Ultra-Twin). The MSA Advantage GME-P100 uses a snap-on mount designed for the Advantage platform (Advantage 420 and other Advantage facepieces). The two cartridges are not interchangeable — verify your facepiece platform before ordering.

Where can I find other MSA GM-series reviews to compare?

WC Safety publishes editorial reviews across the full MSA GM-series. Key comparisons: the MSA 492790 GME review (gas-only, nine inorganic chemistries, ~$2.45/unit), the MSA GMD-P100 review (alkaline gas only + P100), the MSA GMT review (adds tritium sorbent), and the MSA Mersorb P100 review for mercury vapor applications. Browse all MSA cartridges in the MSA respirator filters and cartridges collection.