MSA 815364 Advantage GMC-P100 OV / Acid Gas / P100 Cartridge Review (4.6/5)

Is the MSA 815364 Advantage GMC-P100 the right triple-combination cartridge for chemical and particulate co-exposure on the Advantage platform?

Short answer: Yes — the MSA 815364 Advantage GMC-P100 is the broadest non-specialty protection available on the Advantage snap-on platform, combining organic vapor, acid gas, and P100 particulate filtration (≥99.97%) in a single cartridge. It is the correct default upgrade for any Advantage-platform user whose environment mixes solvent vapors, acid gases, and dust, fume, or aerosol in the same breathing zone. If your confirmed exposure is OV + acid gas only, with documented absence of particulate, the MSA 815357 Advantage GMC saves $6.50 per cartridge. If ammonia or methylamine is also present, step up to the MSA Advantage GME-P100.

Published 2026-06-09 · MSA 815364 Advantage GMC-P100 2-Pack · MSA cartridges and filters

The MSA 815364 Advantage GMC-P100 occupies the triple-combination slot in the Advantage snap-on cartridge lineup — it covers organic vapors, four acid gases (Cl₂, HCl, SO₂, HF), and P100 particulate (≥99.97%) in one housing. That combination addresses the exposure profile common in chemical manufacturing with co-present solvent, acid, and particulate hazards; automotive spray painting in enclosed environments; complex industrial hygiene profiles where multiple hazard classes appear simultaneously in the breathing zone.

This review positions the 815364 within the full MSA Advantage cartridge portfolio, examines the P100 upgrade decision over the MSA 815357 Advantage GMC, compares it against the Comfo-platform equivalent and 3M competitors, and details the service-life, compatibility, and total cost considerations relevant to purchasing decisions on the Advantage platform.

Editorial Verdict: 4.6 / 5
The MSA 815364 Advantage GMC-P100 is the broadest non-specialty protection class on the Advantage snap-on platform and the correct default when any combination of OV, acid gas, and particulate co-exists in the breathing zone. Triple-class coverage in a single housing simplifies compliance documentation and eliminates the risk of choosing the wrong single-class cartridge for a mixed-hazard environment. Rating docked for (1) no ESLI — requiring a written change-out schedule, same limitation as the sibling GMC — and (2) $23.50/cartridge cost that may be over-specified for confirmed single-class or particulate-free environments.

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Who the MSA 815364 Advantage GMC-P100 Is For

This cartridge is the right choice for workers who:

• Own an MSA Advantage respirator (200 LS, 420, 1000, 3000, or 4000) and face simultaneous OV, acid gas, and particulate exposure — the most common industrial hazard profile. See the MSA Advantage 200 LS and MSA Advantage 420
• Work in automotive spray painting or industrial spray coating in enclosed environments where solvent vapors, acid-wash residues, and paint pigment aerosols all reach the breathing zone
• Perform chemical manufacturing tasks involving solvent handling, acid gas generation, and process dust or fume simultaneously
• Handle battery maintenance in environments generating both sulfuric acid gas and metallic dust (lead, cadmium) from battery plate handling
• Need a single-SKU cartridge that covers a complex or uncharacterized Advantage-platform hazard profile without requiring separate chemical class and P100 filter selection
• Manage a respiratory protection program and want to reduce SKU complexity by selecting one cartridge that covers multiple overlapping scenarios

Browse the full MSA respirator filters and cartridges collection to compare across the complete Advantage cartridge line.

What the MSA 815364 Advantage GMC-P100 Does Well

Triple-Class Protection in One Housing

The GMC-P100 combines three independent protection mechanisms in a single snap-on cartridge: an organic vapor sorbent bed, an acid gas sorbent bed (same GMC-class chemistry as the MSA 815357 Advantage GMC), and a P100 particulate filter stage rated at ≥99.97% efficiency under NIOSH 42 CFR Part 84. This triple-class NIOSH approval means a single cartridge change-out event addresses all three hazard classes simultaneously, and a single SKU can be entered on the respirator program's compliance documentation for a mixed-hazard environment — reducing the risk of field-level cartridge selection errors. Verify current approval status on the NIOSH Certified Equipment List.

P100 Efficiency for Oil and Non-Oil Aerosols

The P100 designation covers both oil-based and non-oil aerosols at ≥99.97% filtration efficiency — significantly higher than N95 (≥95%, non-oil only) or R95 (≥95%, oil-degrading). In automotive spray painting environments where isocyanate-based paints or solvent-borne oil aerosols are present alongside OV and acid gas hazards, P100 is the required filtration class under OSHA 29 CFR 1910.94 and 1910.134. The 815364 satisfies that requirement within the Advantage snap-on platform without requiring a separate prefilter cartridge. See the MSA Advantage P100 Low-Profile Filter for P100-only particulate protection when chemical vapor hazards are absent.

Correct Default for Complex or Uncharacterized Hazard Profiles

In environments where a full industrial hygiene assessment has not been completed, or where the hazard profile changes across shifts or tasks, the 815364 GMC-P100 is the appropriate conservative default for Advantage-platform users who expect any combination of OV, acid gas, and particulate. Selecting a cartridge narrower than the confirmed hazard profile (e.g., choosing the GMC without P100 in an environment that turns out to have paint pigment aerosol) creates a live protection gap. The GMC-P100 eliminates that risk within the OV + acid gas + P100 matrix. This conservatism is supported by OSHA 29 CFR 1910.134(d)(1)(iii), which requires that cartridge selection be based on the nature and extent of the hazard.

Broadest Standard Protection Class on the Advantage Platform

Within the Advantage lineup, the 815364 GMC-P100 is the broadest standard combination cartridge short of the MSA Advantage GME-P100 (which adds ammonia/methylamine and additional chemical classes). For the substantial category of environments where OV + acid gas + P100 covers the full hazard matrix, the 815364 provides maximum protection depth without the over-specification cost of multi-gas. Compare with the MSA Advantage GME-P100 review for environments requiring additional chemical class coverage.

Platform-Wide Advantage Respirator Compatibility

The 815364 is verified compatible with the Advantage 200 LS, Advantage 420, and the Advantage 1000, 3000, and 4000 full-face models. This platform-wide compatibility means one GMC-P100 SKU can serve a mixed-inventory program spanning half-mask and full-face Advantage respirators across multiple job classifications, without platform-specific cartridge ordering complexity.

Direct Equivalent to the Comfo GMC-P100 in Chemical Coverage

The MSA Comfo platform equivalent — the MSA 815180 Comfo GMC-P100 (bayonet) — provides the same OV + acid gas + P100 chemical class coverage. Facilities migrating from the Comfo to the Advantage platform, or maintaining both platforms, can match cartridge chemical class across platforms: the 815364 is the Advantage snap-on direct counterpart to the 815180 bayonet. Review the 815180 Comfo GMC-P100 review for the platform comparison.

Where the MSA 815364 Advantage GMC-P100 Falls Short

No ESLI — Written Change-Out Schedule Is Mandatory

Like its sibling MSA 815357 Advantage GMC, the 815364 provides no end-of-service-life indicator for either the OV or acid gas sorbent beds. Under OSHA 29 CFR 1910.134(d)(3)(iii)(B), any cartridge without an ESLI requires a written change-out schedule developed with Industrial Hygienist input, accounting for concentration, temperature, humidity, shift duration, and work rate. Relying on odor or irritation as a breakthrough indicator is not a compliant practice. Programs deploying the 815364 must have the change-out schedule infrastructure established before worker deployment.

Over-Specified — and Over-Priced — for Single-Class or Particulate-Free Environments

At $23.50 per cartridge, the 815364 costs $6.50 more per unit than the MSA 815357 Advantage GMC (OV + AG only, no P100). In environments where industrial hygiene monitoring has confirmed no significant particulate loading, selecting the 815364 pays for a P100 stage that does no work. On a 50-worker program changing cartridges monthly (2 per worker), the over-specification cost is $650/month. The discipline: choose the 815364 when there is any doubt about the particulate profile; choose the 815357 only when the particulate absence is documented.

Acid Gas and Multi-Gas Gaps

The GMC-P100 does not protect against ammonia or methylamine — environments with those hazards require the MSA Advantage GMD or MSA Advantage GME-P100. Mercury vapor requires the MSA Advantage Mersorb. Radioiodine requires the MSA Advantage GMI. Carbon monoxide is not addressed by any cartridge-type respirator — IDLH atmospheres or CO exposure require supplied-air.

Half-Mask APF Ceiling

On the Advantage 200 LS or 420 half-mask, the APF is 10 — the cartridge chemistry and P100 efficiency do not change that ceiling. For concentrations between 10x and 50x the applicable PEL, the worker must move to a full-face Advantage (1000, 3000, or 4000) with the same 815364 cartridges. For concentrations above 50x PEL, or IDLH atmospheres, supplied-air or SCBA is required regardless of cartridge selection.

MSA 815364 Advantage GMC-P100 vs. Competitive Set

How the 815364 stacks up against the most frequently compared OV / acid gas / P100 alternatives on WC Safety:

The MSA 815180 Comfo GMC-P100 and 3M 60923/60926 use bayonet mounts incompatible with Advantage respirators. The 3M 60926 adds ammonia/methylamine coverage the 815364 lacks — relevant if NH₃ is in your hazard matrix. See the MSA 815180 Comfo GMC-P100 review for the bayonet-platform comparison.

Advantage GMC Family: 815357, 815364 GMC-P100, and 815362 GMA-P100 Compared

The 815364 sits at the top of the Advantage GMC sub-family. Comparing all three closely related snap-on cartridges clarifies which to select:

Decision rules:

• Buy the MSA 815364 Advantage GMC-P100 (this cartridge) if: your Advantage respirator is used where organic vapor, acid gas, and any respirable particulate co-exist — or where you have not yet confirmed the absence of particulate through air monitoring. This is the correct default for spray painting, chemical manufacturing, and battery maintenance in metallic-dust environments.
• Buy the MSA 815357 Advantage GMC if: your confirmed hazard is OV + acid gas with documented absence of respirable particulate. Saves $6.50/cartridge. See the full 815357 Advantage GMC review.
• Buy the MSA 815362 Advantage GMA-P100 if: your hazard is organic vapor + particulate with no acid gas. See the 815362 Advantage GMA-P100 review.
• Buy the MSA Advantage GME-P100 if: your hazard includes OV + acid gas + P100 AND ammonia/methylamine or additional chemical classes beyond the GMC matrix. See the 815366 Advantage GME-P100 review.

Shop the Advantage GMC / GMA series on Amazon → GMA-P100 (OV+P100) GMC OV/AG (no P100) GMC-P100 (this cartridge)

Compatible MSA Advantage Respirators and Accessories

The MSA 815364 Advantage GMC-P100 uses the snap-on mount and is verified compatible with the following Advantage respirator models. It does not fit the Comfo Classic, Comfo II, Ultra-Twin, or MSA Ultra-Elite:

• MSA Advantage 200 LS Half-Mask Respirator — entry-level Advantage half-mask (APF 10); lowest program entry cost paired with the 815364
• MSA Advantage 420 Half-Mask Respirator — mid-range Advantage half-mask (APF 10); enhanced comfort for extended wear
• MSA Advantage 1000 Full-Face Respirator (APF 50) — upgrade path when concentrations exceed APF 10 ceiling
• MSA Advantage 3000 Full-Face Respirator (APF 50)
• MSA Advantage 4000 Full-Face Respirator (APF 50)

Supplementary Advantage Accessories

The 815364 GMC-P100 handles particulate within its P100 stage — no separate prefilter is required. For programs with varying hazard profiles across shifts, these accessories extend the Advantage platform:

• MSA Advantage P100 Low-Profile Filter (2-pack) — for particulate-only shifts where no chemical vapor hazard is present; lower cost than the 815364 for those tasks
• MSA Advantage Low-Profile P100 Filter (100-pack) — high-volume particulate-only filter procurement
• MSA Advantage P100 Filter Splash Guard — liquid-splash protection in wet or spray environments; pairs directly with the 815364 in spray coating applications
• MSA Advantage N95 Snap-On Prefilter (10-pack) — N95 prefilter for GMC cartridges that do not include P100; note: adding an N95 prefilter to the 815364 is redundant as the 815364 already integrates P100
• MSA Advantage R95 Snap-On Filter (20-pack) — R95 particulate filter for oil-degrading environments, lighter than P100 for moderate-particulate applications

Top compatible Advantage accessories on Amazon → Advantage 200 LS Advantage 420 P100 Splash Guard

Triple-Combination Cartridges: Category Context

Combination OV + acid gas + P100 cartridges represent the highest protection class available in snap-on cartridge form on the Advantage platform. The three layers work independently: the P100 membrane intercepts particulate before it contacts the sorbent beds; the acid gas impregnated carbon neutralizes acid gas molecules; the OV activated carbon adsorbs organic vapor molecules. Each stage has independent capacity and failure modes. P100 filter loading is typically visible (color change or pressure resistance) but does not predict sorbent bed capacity; the absence of ESLI means the change-out schedule must be written and followed regardless of the P100 filter's visual condition.

Within the Advantage lineup, the GMC-P100 class sits between the narrower P100-only or single-chemical-class cartridges and the broader multi-gas GME-P100. The correct selection principle: use the narrowest class that fully covers the verified hazard inventory. The 815364 is appropriate when OV + acid gas + P100 fully describes the hazard; the GME-P100 is appropriate when additional chemical classes (ammonia, methylamine) are also confirmed. Over-broad selection wastes sorbent capacity and can shorten service life on the classes you most need.

For Comfo platform context, see the MSA 815180 Comfo GMC-P100 review. For non-MSA alternatives on the 3M platform, see the MSA Comfo GMC review for the chemical-coverage comparison. For the broadest standard Advantage coverage, see the MSA Advantage GME-P100 review.

Total Cost of Ownership

At $47.00 per 2-pack ($23.50 per cartridge), the 815364 is the highest per-unit cost standard Advantage cartridge. The change-out interval — not the list price — drives the program TCO calculation:

• Intermittent industrial use (chemical lab, acid maintenance, light spray): Typical schedules of 1–4 weeks depending on IH assessment. At bi-weekly change-out for a half-mask: ~$47.00/worker/month (2 cartridges per respirator). The Advantage 200 LS respirator body amortizes over 12+ months.
• Continuous industrial use (production spray lines, chemical processing, battery manufacturing): Change-out as frequently as daily. At daily change-out: ~$235/worker/week — at this frequency, evaluate whether the full-face Advantage 1000/3000/4000 with 815364 or a supplied-air solution is more cost-effective for the program.
• GMC-P100 vs. GMC cost comparison: The 815364 costs $6.50/cartridge more than the MSA 815357 GMC. On a 50-worker program changing bi-weekly (2 cartridges each): $6.50 premium adds $650/month. That premium is justified the moment particulate is present — a P100 gap in a particulate environment represents an uncontrolled inhalation hazard far costlier than $650/month.
• Volume purchasing: For programs with high volume P100 particulate needs across different chemical shift types, compare against using the MSA Advantage Low-Profile P100 Filter (100-pack) for particulate-only shifts alongside a separate GMC for chemical shifts. This two-SKU approach may reduce cost in highly segmented work tasks.

Final Verdict: MSA 815364 Advantage GMC-P100 OV / Acid Gas / P100 Cartridge

Rating: 4.6 / 5. The MSA 815364 Advantage GMC-P100 is the correct default Advantage-platform cartridge for any environment where OV, acid gas, and particulate co-exist — which describes the majority of spray painting, chemical manufacturing, and complex industrial environments where the Advantage platform is deployed. Triple-class NIOSH approval in a single snap-on housing simplifies both cartridge selection discipline and compliance documentation. The minor rating deductions reflect the absence of ESLI (a limitation shared across the Advantage catalog) and the fact that the $23.50 price point is over-specified for confirmed single-class environments.

• Buy the MSA 815364 Advantage GMC-P100 (this cartridge) if: your Advantage respirator operates in any environment with confirmed or suspected co-presence of OV, acid gas, and particulate — or if the hazard profile is not fully characterized through air monitoring.
• Buy the MSA 815357 Advantage GMC if: documented air monitoring confirms OV + acid gas exposure with no significant respirable particulate. See the GMC review.
• Buy the MSA 815362 Advantage GMA-P100 if: your hazard is OV + particulate with no acid gas component. See the GMA-P100 review.
• Buy the MSA Advantage GME-P100 if: your environment adds ammonia, methylamine, or other hazard classes beyond the GMC matrix to the OV + acid gas + P100 profile. See the GME-P100 review.
• Buy the MSA 815180 Comfo GMC-P100 if: you are on the MSA Comfo bayonet platform — same chemical class, bayonet mount. See the Comfo GMC-P100 review.

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Frequently Asked Questions — MSA 815364 Advantage GMC-P100 OV / Acid Gas / P100 Cartridge

Is the MSA 815364 Advantage GMC-P100 NIOSH approved?

Yes. The MSA 815364 Advantage GMC-P100 is NIOSH approved under 42 CFR Part 84 as a triple-class organic vapor, acid gas, and P100 particulate cartridge. Approval can be confirmed on the NIOSH Certified Equipment List. This NIOSH certification is required for any cartridge used in an employer respiratory protection program governed by OSHA 29 CFR 1910.134.

What does the MSA 815364 Advantage GMC-P100 protect against?

The 815364 protects against organic vapors (broad OV class — solvents, VOCs, chlorinated solvents), acid gases including chlorine (Cl₂), hydrogen chloride (HCl), sulfur dioxide (SO₂), and hydrogen fluoride (HF), and respirable particulate at P100 efficiency (≥99.97% for both oil and non-oil aerosols). It does not protect against ammonia, methylamine, mercury vapor, radioiodine, or carbon monoxide. For those additional hazards, different cartridges are required — see the MSA Advantage GME-P100 for a broader chemical matrix.

MSA 815364 Advantage GMC-P100 vs. MSA 815357 Advantage GMC — which should I buy?

If your environment includes any respirable dust, metallic fumes, aerosols, or paint pigment, buy the 815364 GMC-P100. Both cartridges have identical OV + acid gas coverage; the 815364 adds P100 particulate filtration (≥99.97%) for $6.50 more per cartridge. The 815357 GMC is appropriate only in documented particulate-free environments. When in doubt, the 815364 is the correct default. See the full MSA 815357 Advantage GMC review for the P100 decision breakdown. Check 815364 price on Amazon →

Does the MSA 815364 fit the MSA Advantage 200 LS and Advantage 420 respirators?

Yes. The 815364 uses the Advantage snap-on mount and is compatible with the Advantage 200 LS, Advantage 420, and the Advantage 1000, 3000, and 4000 full-face models. It does not fit the Comfo Classic, Comfo II, Ultra-Twin, or Ultra-Elite platforms.

MSA 815364 Advantage GMC-P100 vs. MSA 815180 Comfo GMC-P100 — what is the difference?

Both provide identical triple-class chemical protection (OV + acid gas + P100 GMC class). The difference is the mount: the 815364 uses the Advantage snap-on interface; the 815180 Comfo GMC-P100 uses the Comfo bayonet. They are not interchangeable between platforms. Pricing is comparable. See the 815180 Comfo GMC-P100 review for the platform comparison.

Can the MSA 815364 be used for automotive spray painting?

Yes — the 815364 is the correct Advantage-platform cartridge for automotive spray painting. Spray painting environments combine solvent vapor (OV), acid-wash or primer acid gas components (acid gas class), and paint pigment aerosol (P100). The triple-class 815364 addresses all three simultaneously. Confirm that your respirator's APF (APF 10 for half-mask Advantage 200 LS/420) is sufficient for measured or estimated concentrations; upgrade to a full-face Advantage for higher concentrations.

How often should the MSA 815364 Advantage GMC-P100 be replaced?

No ESLI is provided, so change-out frequency requires a written schedule per OSHA 29 CFR 1910.134(d)(3)(iii)(B). The schedule must account for contaminant species, concentration, temperature, humidity, work rate, and shift duration and must be developed with input from a qualified person or Certified Industrial Hygienist. Do not rely on odor, irritation, or P100 filter color change as a sorbent change-out signal — OV sorbent exhaustion can occur before sensory detection at some concentrations, and acid gas sorbent capacity is depleted independently of the P100 stage.

MSA 815364 Advantage GMC-P100 vs. 3M 60923 AG/OV/P100 — which is better?

Both provide OV + acid gas + P100 triple-class protection. The 3M 60923 uses the 3M bayonet mount, making it incompatible with any Advantage respirator. If you own an Advantage respirator, the 815364 is the correct choice. The 3M 60923 is the parallel selection for 3M 6000/6500/7000 series respirator users. Note that the 3M 60926 adds ammonia/methylamine coverage if your 3M-platform hazard matrix requires it. Check 3M 60923 price on Amazon →

Does the MSA 815364 Advantage GMC-P100 protect against HF and SO₂?

Yes. Hydrogen fluoride (HF) and sulfur dioxide (SO₂) are both included in the acid gas coverage of the GMC class. The same ESLI-absent limitation applies — a change-out schedule is mandatory. HF carries additional skin absorption hazard pathways beyond respiratory exposure; consult an Industrial Hygienist for full HF exposure program design.

Is the MSA 815364 the right cartridge for chemical manufacturing with multiple hazards?

Yes, for chemical manufacturing environments where the confirmed hazards are within the OV + acid gas + P100 matrix (solvent vapors, chlorinated compounds, acid gas co-generation, process dust or fume). The 815364's triple-class coverage and single-SKU simplicity makes it well-suited to complex manufacturing environments where the hazard inventory includes multiple simultaneous exposure pathways. For environments that also include ammonia, methylamine, or other chemical classes beyond the GMC matrix, the MSA Advantage GME-P100 is required. Review the GME-P100 review for the comparison.

What is the APF for the MSA 815364 Advantage GMC-P100 on a half-mask versus full-face?

APF is set by the respirator facepiece, not the cartridge. The MSA Advantage 200 LS and 420 half-masks have an APF of 10 per OSHA Table 1, meaning they are appropriate for concentrations up to 10x the applicable PEL/TLV. Pairing the 815364 with the Advantage 1000, 3000, or 4000 full-face models raises the APF to 50. Confirm that the selected APF is sufficient for measured or estimated contaminant concentrations before program deployment.

Does the MSA 815364 protect against oil aerosols?

Yes. The P100 designation covers both oil and non-oil aerosols at ≥99.97% efficiency. This distinguishes P100 from N95 (non-oil only, ≥95%) and R95 (oil-degrading, ≥95%). In environments with oil mist, isocyanate aerosol, or other oil-based process aerosols alongside OV and acid gas hazards, the P100 stage in the 815364 provides the required oil aerosol protection.

Can I add an N95 prefilter to the MSA 815364 to extend its service life?

The MSA Advantage N95 prefilter is designed to extend the service life of cartridges that do not include a P100 stage. Adding it to the 815364 (which already integrates P100) is redundant — the 815364's built-in P100 stage already provides higher efficiency than an N95 prefilter. Do not stack an N95 prefilter on the 815364 expecting an extended change-out interval on the sorbent beds; the sorbent beds are depleted by gas-phase contaminants, not by the particulate loading intercepted by the filter stage.

MSA 815364 vs. MSA Advantage GME-P100 — when do I need multi-gas instead?

The MSA Advantage GME-P100 covers a broader chemical class matrix than the 815364 — adding ammonia, methylamine, and other classes beyond the GMC profile. Choose the GME-P100 when your verified hazard inventory includes any chemical class not covered by OV + acid gas + P100. Choose the 815364 when OV + acid gas + P100 fully addresses your confirmed hazard matrix, as the narrower-class 815364 may have better sorbent longevity for the specific classes you need. See the GME-P100 review. Check GME-P100 price on Amazon →

Where can I find other MSA Advantage cartridge reviews on WC Safety?

Related reviews in the Advantage series: MSA 815355 Advantage GMA, MSA 815362 Advantage GMA-P100, MSA 815356 Advantage GMB, MSA 815363 Advantage GMB-P100, MSA 815357 Advantage GMC, MSA 815359 Advantage GME, and MSA 815366 Advantage GME-P100. For the Comfo bayonet equivalent, see the MSA 815180 Comfo GMC-P100 review.

Is the MSA 815364 Advantage GMC-P100 appropriate for battery manufacturing?

Yes. Battery manufacturing environments typically present sulfuric acid mist and gas (acid gas class), solvent vapors from electrolyte additives and coatings (OV class), and metallic dust from electrode and plate handling — particularly lead and cadmium, which are IARC-classified carcinogens requiring P100-level filtration per OSHA lead standard 29 CFR 1910.1025. The 815364's OV + acid gas + P100 triple-class coverage addresses all three battery manufacturing hazard components in a single snap-on cartridge.

Can the MSA 815364 be used with the MSA Ultra-Elite full-face respirator?

No. The MSA 815364 uses the Advantage snap-on mount, which is incompatible with the MSA Ultra-Elite full-face respirator. The Ultra-Elite uses a bayonet cartridge mount. For Ultra-Elite users requiring OV + acid gas + P100 triple-class protection, the compatible cartridge is the MSA 815180 Comfo GMC-P100 (bayonet). Review the 815180 Comfo GMC-P100 review for that platform.