MSA 10123079 Advantage Low-Profile P100 Filter for Advantage Respirators — Bulk Pack of 100

MSA 10123079 Advantage Low-Profile P100 Filter Overview

The MSA 10123079 is a NIOSH-approved P100 particulate filter in the low-profile bayonet form factor, sold here in a bulk pack of 100 filters — working out to $7.72 per filter pair at the $15.44 pack price. It snaps directly onto the MSA Advantage half-mask respirator and MSA Advantage full-face respirator platforms via the bayonet mount, delivering ≥99.97% filtration efficiency against all oil and non-oil aerosols. For workers who need particulate-only protection — silica dust, lead dust, asbestos, metal fume — this bulk pack is the lowest-cost path to P100 compliance on the MSA Advantage filter platform. Buyers who need simultaneous chemical protection should compare this filter against the MSA GMA P100 OV/particulate combination cartridge before purchasing.

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Where the MSA 10123079 Fits in Respirator Selection

Start hazard assessment before selecting any filter. If your industrial hygienist or SDS identifies the exposure as particulate only — airborne dust, fume, mist, or aerosol — with no concurrent vapor or gas hazard above the OSHA permissible exposure limit, the 10123079 is the correct filter class. The P100 designation is the highest NIOSH efficiency rating for particulate filters (≥99.97%), making it appropriate for respirable crystalline silica, lead, beryllium, cadmium, asbestos, and metal fumes where no chemical cartridge is needed alongside particulate protection.

If your exposure includes organic vapors, acid gases, or ammonia alongside particulate hazards, you need a combination cartridge rather than a stand-alone filter. Our respirator cartridge selection guide walks through the OSHA hierarchy and cartridge service-life estimation. For a plain-language explanation of why filter efficiency ratings matter, see respirator filter types explained. The NIOSH cartridge color chart provides a quick visual reference: P100 filters are always magenta (purple-pink).

Who Should Buy the MSA 10123079?

Buy this filter if you:

• Already operate MSA Advantage 200 LS or 420 half-masks or Advantage 1000/3000/4000 full-face respirators and need bulk P100 filter stock
• Work in environments with silica dust, lead dust, asbestos, welding fume, or other NIOSH-classified particulate hazards requiring ≥99.97% filtration efficiency — see our best respirator for silica dust guide
• Run a safety program and want to minimize per-unit cost through 100-pack purchasing rather than buying 2-packs repeatedly
• Prefer a low-profile filter form factor that reduces facepiece bulk in confined or tight working positions

Do NOT buy this filter if you:

• Need organic vapor protection alongside particulate filtration — choose the MSA GMA P100 OV/P100 cartridge instead
• Need acid gas protection — the MSA GMB P100 acid gas cartridge covers chlorine, hydrogen chloride, and sulfur dioxide alongside P100
• Need multi-contaminant protection — see the MSA GME P100 multigas cartridge
• Use MSA Millennium, G1 SCBA, or any non-Advantage-platform facepiece — the bayonet mount is not cross-compatible
• Require quantified protection factors above what a half-mask or full-face air-purifying respirator can deliver in IDLH or oxygen-deficient atmospheres

What Does the MSA 10123079 Protect Against?

The 10123079 is a P100-rated particulate filter — no chemical sorbent bed is included. The table below maps covered hazard types to practical buyer guidance.

What the MSA 10123079 Does NOT Protect Against

This filter contains no activated carbon or chemical sorbent bed. It provides zero protection against:

• Organic vapors (solvents, VOCs, paint fumes) — use the MSA GMA organic vapor cartridge or GMA P100 combination
• Acid gases (chlorine, hydrogen chloride, sulfur dioxide) — use the MSA GMB P100 acid gas cartridge
• Ammonia and methylamine — use the MSA GMD P100 ammonia cartridge
• Mercury vapor — use the MSA Mersorb P100 mercury vapor cartridge
• Carbon monoxide, hydrogen cyanide, or other immediately dangerous gases
• Multi-contaminant environments requiring broader chemical coverage — use the MSA GME P100 multigas cartridge

SAFETY WARNING: Air-purifying respirators including this P100 filter do not supply oxygen and must never be used in oxygen-deficient atmospheres (below 19.5% O2), immediately dangerous to life or health (IDLH) concentrations, or any environment requiring a self-contained breathing apparatus (SCBA). If atmospheric oxygen content is unknown or the environment is IDLH, STOP work and consult a qualified industrial hygienist before proceeding.

Best Applications for the MSA 10123079

Construction and Demolition — Silica and Lead Dust Control

Concrete cutting, grinding, and jackhammering generate respirable crystalline silica at concentrations that can exceed OSHA's action level rapidly. The 10123079 paired with an Advantage 420 half-mask or Advantage 3000 full-face respirator meets OSHA 1926.1153 filter requirements. Bulk 100-pack purchasing is ideal for large construction crews where weekly filter changes are standard practice. Our silica dust respirator guide covers rotation schedules and assigned protection factor requirements by task.

Abatement — Lead, Asbestos, and Hazardous Material Remediation

Lead abatement under OSHA 1926.62 and asbestos removal under 1926.1101 both mandate P100-class filtration for workers in regulated areas above action level. The low-profile design makes these filters compatible with supplied-air hood-over arrangements and minimizes clearance issues in tight spaces. A 100-pack stocking quantity ensures replacement filters are never a constraint during scheduled abatement projects.

Industrial Welding and Metal Fabrication

Welding fume contains metal oxide particulates — iron, manganese, zinc, chromium — at concentrations requiring P100 filtration when engineering controls are insufficient. Where the process also generates hexavalent chromium (stainless or chrome-alloy welding), an MSA combination cartridge with chemical sorbent is required alongside particulate protection. For purely iron or mild-steel welding environments where vapor exposures are controlled, the 10123079 is the appropriate filter selection. See our welding fume respirator selection guide for a process-by-process breakdown.

Mining and Mineral Processing

Hard-rock mining, coal processing, and mineral handling environments expose workers to mixed silica and coal dust at concentrations requiring the highest particulate filtration class. The Advantage platform's bayonet mount allows rapid filter changes during shift transitions, and 100-pack quantities support centralized safety cage dispensing. For facilities running the full MSA Advantage facepiece fleet across multiple shifts, the 10123079 represents the most practical bulk stocking unit.

MSA 10123079 Pros and Cons

Compatible MSA Respirators

The 10123079 uses the MSA Advantage low-profile bayonet snap-on mount. This mount is exclusive to the Advantage series and is not interchangeable with the bayonet thread used on MSA GMx-series cartridges.

MSA 10123079 vs Other MSA Advantage Filters and Cartridges

All products below mount to the MSA Advantage bayonet platform. Select by hazard class, not brand preference.

MSA 10123079 vs MSA GMA P100 Organic Vapor/P100 Combination Cartridge

This is the most common upgrade decision buyers face when transitioning from particulate-only to chemical-plus-particulate protection on the Advantage platform.

MSA 10123079 vs MSA GMC P100 OV/Acid Gas Combination Cartridge

Workers in mixed environments with both acid gases and organic vapors alongside particulate should compare these two options. The MSA GMC P100 combination cartridge provides the broadest dual-chemical plus P100 coverage on the Advantage platform, while the 10123079 is strictly particulate.

MSA 10123079 Quick Answers

What respirators does the MSA 10123079 fit?

The MSA 10123079 low-profile P100 filter fits the MSA Advantage 200 LS and 420 half-mask respirators and the Advantage 1000, 3000, and 4000 full-face respirators — all via the bayonet snap-on mount. It does not fit MSA Millennium, MSA G1 SCBA, or any non-Advantage-platform facepiece.

How many filters come in the 100-pack and what is the per-filter cost?

The 10123079 bulk pack contains 100 individual low-profile P100 filters, which are used in pairs (one per side of the respirator), giving 50 change-out sets per pack. At $15.44 per pack, the per-filter price is $7.72 per pair, making it significantly more economical for high-volume programs than purchasing 2-packs repeatedly.

Does this filter protect against organic vapors or gases?

No. The 10123079 is a particulate-only P100 filter with no activated carbon or chemical sorbent bed. It provides zero protection against organic vapors, acid gases, ammonia, mercury vapor, or any other chemical hazard. Workers who need chemical protection alongside P100 particulate filtration should select an MSA combination cartridge appropriate to their specific hazard class.

How do I know when to replace the MSA 10123079 P100 filter?

P100 filters do not have a chemical breakthrough end-of-service-life indicator — they are replaced based on increased breathing resistance (when the filter feels significantly harder to breathe through) or following any physical damage, distortion, or contamination with hazardous liquid. Many programs replace P100 filters on a fixed schedule (shift or weekly) rather than relying on user-reported resistance. Filter condition must be checked before each use as part of the pre-use inspection required under OSHA 29 CFR 1910.134.

What is the NIOSH approval number for the MSA 10123079?

NIOSH-approved respirator and filter approval numbers appear on the filter label itself. P100 filters are identified by the magenta (purple-pink) color designation per NIOSH color-coding requirements. Verify the NIOSH TC approval number printed on your filter label against the NIOSH Certified Equipment List before use in regulated environments. For a plain-language breakdown of NIOSH filter codes, see the respirator filter types guide.

Is the MSA 10123079 compatible with the MSA GMA or GMB cartridge system?

No. The low-profile snap-on filter and the GMx threaded bayonet cartridge system are two separate mount types on the Advantage platform that are not interchangeable. GMx cartridges (GMA, GMB, GMC, etc.) thread into the facepiece using a different bayonet connection. Do not attempt to use the 10123079 in place of a GMx cartridge or vice versa.

Can I use the MSA 10123079 for asbestos abatement work?

Yes, P100 particulate filters including the 10123079 meet OSHA 1926.1101 filter requirements for asbestos abatement in regulated areas above the action level, when used with an MSA Advantage half-mask or full-face respirator that has been properly fit-tested to the wearer. The assigned protection factor of the facepiece class (half-face APF 10, full-face APF 50) determines whether the respirator provides sufficient protection at the measured airborne concentration.

MSA 10123079 Specifications

Helpful Buying Guides

• How to Choose a Respirator Cartridge — Complete Selection Guide
• Respirator Filter Types Explained — N95, P100, OV, and Combination Cartridges
• NIOSH Respirator Cartridge Color Chart — Identify Your Filter by Color
• Best Respirator for Silica Dust (2026) — P100 Filter and Facepiece Recommendations
• Best Respirator for Welding Fumes — Filter and Cartridge Selection by Process
• Organic Vapor vs P100 — When You Need a Chemical Cartridge vs a Particulate Filter
• Shop All MSA Respirator Filters and Cartridges

MSA 10123079 Frequently Asked Questions

Q: What is the difference between the 10123079 bulk pack and a standard 2-pack of MSA P100 low-profile filters?

The filter media and performance are identical — the 10123079 is simply packaged in a 100-filter bulk quantity rather than a retail 2-pack. The per-unit cost is lower in the 100-pack, making it the better choice for safety programs that go through filters regularly. Small users or those evaluating MSA Advantage compatibility for the first time may prefer to start with the standard MSA low-profile P100 filter in a smaller pack before committing to a bulk order.

Q: Do the 10123079 filters work with the Advantage 420 half-mask?

Yes. The Advantage 420 half-mask uses the same low-profile bayonet snap-on mount that the 10123079 is designed for. Install one filter on each side of the facepiece, snap until seated, and confirm a secure connection by attempting to rotate the filter — it should not rotate freely once properly engaged.

Q: Can I stack a pre-filter over the MSA 10123079 P100 filter to extend service life?

MSA offers snap-on prefilter accessories for the Advantage platform that are designed to mount over the filter assembly. However, verify compatibility with your specific facepiece model and confirm the pre-filter combination does not compromise the NIOSH approval of the assembly. Adding unapproved accessories to a NIOSH-certified respirator can void the approval and reduce protection. The MSA Advantage N95 snap-on prefilter (50-pack) is one option designed for this purpose.

Q: Does the 10123079 filter provide protection for silica sandblasting operations?

Sandblasting with silica-containing abrasive generates extremely high airborne silica concentrations that typically exceed the assigned protection factor of any air-purifying respirator (APR), including those with P100 filters. OSHA and NIOSH recommend supplied-air respirators (SARs) operating in pressure-demand mode for abrasive blasting with silica. Consult a qualified industrial hygienist before specifying any APR for sandblasting. The 10123079 is appropriate for lower-concentration silica exposures such as grinding and cutting as addressed in the OSHA silica standard.

Q: How do I properly dispose of used MSA 10123079 P100 filters?

Disposal requirements depend on what hazard the filter was exposed to. Filters used in lead, asbestos, cadmium, beryllium, or other OSHA-regulated heavy metal environments are considered contaminated waste and must be disposed of in accordance with applicable federal, state, and local hazardous waste regulations. Filters used in general nuisance dust environments without regulated hazardous materials may typically be disposed of as normal solid waste. Confirm disposal requirements with your environmental health and safety officer or industrial hygienist before discarding filters used in regulated environments.

Q: What is the shelf life of unused MSA 10123079 P100 filters?

MSA publishes a shelf life for Advantage filters when stored in the original sealed packaging under recommended storage conditions (temperature and humidity within manufacturer specifications, away from direct sunlight, chemical fumes, and ozone). Check the expiration or manufactured-on date printed on the packaging. Do not use filters beyond the printed expiration date or if the original sealed packaging has been compromised, even if the filters appear undamaged.

Q: Is the 10123079 P100 filter approved for asbestos removal above the OSHA excursion limit?

P100 filters are the required minimum filter class under OSHA 1926.1101 for asbestos abatement in regulated areas above the permissible exposure limit. However, the required respirator type (half-face vs. full-face) is determined by the measured airborne asbestos concentration relative to the facepiece's assigned protection factor — not the filter class alone. At concentrations exceeding 10 times the PEL, a full-face Advantage respirator with P100 filters provides the required APF of 50. Confirm your site IH assessment determines the correct facepiece selection.

Q: Can the 10123079 be reused, or is it a single-use filter?

The 10123079 is a reusable filter — it is not a disposable single-use item. It is used until breathing resistance becomes excessive (indicating filter loading), until it is physically damaged or contaminated with liquid hazardous material, or until the scheduled replacement interval set by your written respiratory protection program is reached. Store filters in a sealed clean bag between uses to prevent contamination and physical damage.

Q: What does the "P" designation in P100 mean versus N100 or R100?

NIOSH assigns the oil-resistance designation before the efficiency number: N (Not oil-resistant), R (oil-Resistant for one work shift), and P (oil-Proof — no degradation from oil aerosol exposure). P100 maintains its ≥99.97% efficiency even in oil-mist environments, making it appropriate wherever oil aerosols or oil-based metalworking fluids are present. For a full explanation of the NIOSH filter designation system, see our respirator filter types guide or the NIOSH color chart guide.

Q: Does the MSA 10123079 fit the Advantage 200 LS respirator specifically?

Yes. The Advantage 200 LS is explicitly listed by MSA as a compatible facepiece for the 10123079 low-profile P100 filter. The low-profile form factor is particularly well suited to the 200 LS, which is designed for minimal bulk and improved downward sightline. Confirm model number on your Advantage 200 LS facepiece before ordering, as non-Advantage MSA facepieces use different filter connection systems.

Q: I need to protect against both metal fume and organic vapors — is the 10123079 sufficient?

No. If your process generates both particulate (metal fume) and organic vapor hazards simultaneously, the 10123079 P100 filter alone is insufficient — it provides zero organic vapor protection. You need the MSA GMA P100 combination cartridge, which pairs an activated carbon sorbent bed with a P100 particulate layer for simultaneous organic vapor and particulate protection. Review our organic vapor vs P100 guide for a full comparison of when each is required.

Q: Where can I buy the MSA 10123079 in bulk quantities?

The MSA 10123079 100-pack is available directly through WC Safety and via Amazon using the button below. WC Safety is an authorized MSA Safety retailer. For B2B orders, fleet pricing, or quantities beyond a single 100-pack, contact the WC Safety team for a quote.