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MSA Low Profile P100 Particulate Filter — Low-Profile (MSA Comfo, 2-pack)
$78.49
Final price set by Amazon · may vary
EDITORIAL REVIEW: 4.6/5WC Safety Review — MSA Low Profile P100 Particulate Filter Best For: dust, mist, fume and lead on MSA Comfo respirators — standalone P100 particulate, or paired with a gas cartridge. Not For...
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EDITORIAL REVIEW: 4.6/5WC Safety Review — MSA Low Profile P100 Particulate Filter
Best For: dust, mist, fume and lead on MSA Comfo respirators — standalone P100 particulate, or paired with a gas cartridge.
Not For: gases or vapors. It captures particulate only — pair it with an MSA gas cartridge for vapors.
Bottom Line: the low-profile P100 particulate choice for the MSA Comfo system; pair it with a gas cartridge when vapors are present.
Editorial assessment by the WC Safety Editorial Team. Scoring reflects published MSA specifications, NIOSH approval, application fit and category expertise. WC Safety did not laboratory-test this product.
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Read our hands-on MSA Low Profile P100 Filter review for field-tested buyer notes.
MSA Low Profile P100 Particulate Filter Overview
The MSA Low Profile P100 Filter is a NIOSH-approved low-profile P100 particulate filter for MSA Comfo respirators. It captures at least 99.97% of airborne particles and is oil-proof. Its low-profile shape keeps your view clear. Start with our filter types explained and organic vapor vs P100 guides, then confirm fit in Comfo vs Advantage.
As an MSA Comfo P100 filter it belongs to the MSA respirator filters and cartridges range. Use it for particulate-only work, or pair it with an MSA gas cartridge when vapors are present.
Where the MSA Low Profile P100 Filter Fits
The MSA Low Profile P100 Filter handles airborne particulate only. For gases you need an MSA cartridge such as the GMA organic vapor or GMB acid gas, or a combination cartridge like the GMA/P100.
What Does the MSA Low Profile P100 Filter Protect Against?
| Hazard | Fit | Buyer guidance |
|---|---|---|
| Dust, mist, fume, lead (particulate) | Yes — P100 | ≥99.97%, oil-proof. |
| Oil-based mist | Yes | P100 is oil-proof. |
| Gases & vapors | No | Pair with an MSA gas cartridge. |
What the MSA Low Profile P100 Filter Does NOT Protect Against
The MSA Low Profile P100 Filter does not capture gases or vapors. Add the GMA for organic vapor, the GMB for acid gas, or use the all-in-one GMA/P100.
No air-purifying cartridge makes a dangerous atmosphere safe. Never use the MSA Low Profile P100 Filter in an oxygen-deficient or IDLH (immediately dangerous to life or health) atmosphere, in unknown concentrations, or against gases with no warning properties — those conditions require a supplied-air or SCBA system, not a cartridge respirator.
Best Applications
General particulate & lead
Grinding, sanding and lead dust at P100; see filter types explained.
Pairing with a gas cartridge
Add a Comfo gas cartridge for vapors, or use a combination cartridge like the GMA/P100.
Pros & Cons
Pros
highest P100 efficiency (≥99.97%) · oil-proof · genuine MSA Comfo fit · pairs with any MSA Comfo gas cartridge · low-profile for visibility
highest P100 efficiency (≥99.97%) · oil-proof · genuine MSA Comfo fit · pairs with any MSA Comfo gas cartridge · low-profile for visibility
Cons
particulate only — no gas protection · MSA Comfo fit only
particulate only — no gas protection · MSA Comfo fit only
MSA Low Profile P100 Filter vs Other MSA Filters & Cartridges
| Cartridge | Protects against |
|---|---|
| MSA Comfo GMA/P100 | OV + P100 combo |
| MSA Comfo GMA | Organic vapor |
| MSA SparkFoe | Welding P100 |
MSA Low Profile P100 Filter vs the Alternatives
How it compares to the closest MSA options:
- MSA Low Profile P100 Filter vs GMA/P100: this filter is particulate only; the GMA/P100 builds the same P100 into an organic-vapor cartridge.
- MSA Low Profile P100 Filter vs SparkFoe P100: the SparkFoe version adds spark/static resistance for welding.
- MSA Low Profile P100 Filter vs an MSA gas cartridge: a gas cartridge stops vapors; this filter stops particulate — many jobs need both.
MSA Low Profile P100 Filter Quick Answers
Does the MSA Low Profile P100 Filter stop gases?
No — pair it with an MSA gas cartridge such as the GMA for vapors.
Does the MSA Low Profile P100 Filter fit my MSA respirator?
It fits the MSA Comfo family; check the half-mask and full-face ranges.
Is the MSA Low Profile P100 Filter oil-proof?
Yes — P100 is the oil-proof particulate class.
MSA Low Profile P100 Filter Specifications
| Filter class | P100 — ≥99.97%, oil-proof |
| Protects | Particulate only |
| NIOSH marking | Magenta (P100) |
| Form | Low-profile |
| Connection | MSA Comfo |
| Sold as | 2-pack |
Compatible MSA Respirators
The MSA Low Profile P100 Filter uses the MSA Comfo threaded-bayonet connection, so it mounts on the Comfo Classic half-mask and Ultra-Elite full-face respirators (and the Comfo II and Ultra-Twin). It is not interchangeable with the MSA Advantage series, and does not fit 3M, Honeywell North or other brands.
| Respirator | Type | Compatible? |
|---|---|---|
| MSA Comfo Classic | Half mask | Yes — Comfo bayonet |
| MSA Comfo II | Half mask | Yes — Comfo bayonet |
| MSA Ultra-Elite | Full face | Yes — Comfo bayonet |
| MSA Ultra-Twin | Full face | Yes — Comfo bayonet |
| MSA Advantage series | Half / full | No — different connection |
| 3M / Honeywell North | Half / full | No (not compatible) |
Helpful Buying Guides
- MSA Comfo vs Advantage
- How to choose a respirator cartridge
- MSA vs 3M respirator cartridges
- MSA vs Honeywell North cartridges
- organic vapor vs P100
- respirator cartridge color chart
- respirator filter types explained
MSA Low Profile P100 Filter Frequently Asked Questions
What does the MSA Low Profile P100 Filter protect against?
It is a P100 particulate filter: it captures at least 99.97% of airborne particles — dust, mist, fume, lead — and is oil-proof. It does not filter gases on its own.
Does the MSA Low Profile P100 Filter protect against gases?
No. For gases or vapors, pair it with an MSA gas cartridge such as the GMA (organic vapor), or use a combination cartridge like the GMA/P100.
Which respirators does the MSA Low Profile P100 Filter fit?
It fits MSA Comfo-series respirators (Comfo Classic, Comfo II, Ultra-Twin, Ultra-Elite).
What does P100 mean?
P100 is the highest NIOSH particulate rating: oil-proof and at least 99.97% efficient. The filter carries a magenta marking.
Is the MSA Low Profile P100 Filter oil-proof?
Yes. P100 filters are oil-proof, so it can be used against oil-based mists as well as solid particulate.
Can I use the MSA Low Profile P100 Filter for welding?
It captures weld fume as a P100, though the SparkFoe low-profile filter is preferred where sparks are present.
Is the MSA Low Profile P100 Filter NIOSH-approved?
Yes, as a P100 filter under 42 CFR Part 84. Verify against the NIOSH Certified Equipment List.
How is the MSA Low Profile P100 Filter sold?
This listing is the 2-pack. Use Request a Quote for larger case quantities.
How often should I replace the MSA Low Profile P100 Filter?
Replace it when breathing resistance rises as particulate loads it, or when it is damaged or soiled.
Is the MSA Low Profile P100 Filter reusable?
The filter is used until its particulate service life is reached; the respirator is reusable across many filter changes.
Is this the genuine MSA Low Profile P100 Filter?
Yes. WC Safety sells authentic, NIOSH-approved MSA Comfo filters through legitimate supply channels.
How should I store the MSA Low Profile P100 Filter?
Store it sealed in its original packaging, away from dust and moisture.
Written by Steven Eaton, WC Safety Editorial — industrial respiratory protection desk. Reviewed by the WC Safety Editorial Team. Specifications sourced from MSA Safety published data and verified against the NIOSH Certified Equipment List. Compare the range in MSA respirator filters & cartridges or read MSA Comfo vs Advantage.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Always verify cartridge compatibility and follow your written respiratory protection program. General information, not medical or regulatory advice.
Brand / Vendor
MSA Safety
Model / SKU
815177
Product Type
Respirator Filter
Price
$78.49 (Amazon)
Rating
3.57 / 5 — 7 reviews
Availability
Check current availability on Amazon
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Verified Buyer Reviews
Customer Reviews
★★★★☆4.1 / 5· 30 ratings on Amazon
★★★★★
SAFETY
protect your health and work comfortably with these respirator filters. They do a great job and fit my mask
Verified Purchaser · October 19 · ✓ Amazon Verified Purchase
★★★★★
99.97% protection against COVID 19 mists
If you have, or can find to buy, the MSA Classic Comfo 1/2 mask, this is the cartridge you want to deal with COVID 19. (these are not combination cartridges—they filter out mists and particles only). These P100 cartridges filter out 99.97% of all mists/particles, etc. A N95 mask filters out 95 % of all particles. So, these are the best you can do to protect yourself in public—nothing better except a full face mask using these same cartridges. I’m, 76 years old and wear this every time I am mingling with the public. Stay safe. Note, you can find these from other vendors. Just be sure to order # MSA 815177.
Verified Purchaser · June 20, 2 · ✓ Amazon Verified Purchase
★★★★★
MSA Ultra Twin with two of these, you can run around the block
Almost no air restriction.Also you was exhausting the bacteria that stays on you cloth or paper ones.MSA calls it "Clean Air Breathing"This will keep you safe with the proper safe guards.The "P" is for Petroleum resistant. The "N" is not.95>100 Finer particle stoppage.Speculation: I think these do not have use by date because they do not have activated charcoal filtering.
Verified Purchaser · August 9, · ✓ Amazon Verified Purchase
★☆☆☆☆
Old Stock, Oxidized
The ones I received were clearly old stock, shipped in open box and the metal was oxidizing. I did not bother to check whether or not they were usable.
Verified Purchaser · July 29, 2 · ✓ Amazon Verified Purchase
★★☆☆☆
Old
Old stock that's partly rusted disappointing.
Verified Purchaser · October 19 · ✓ Amazon Verified Purchase
★★☆☆☆
Regret Buying
Does not take away the chemical smell.
Verified Purchaser · January 6, · ✓ Amazon Verified Purchase
★★★★★
Quick Delivery
Products was as stated
Verified Purchaser · May 17, 20 · ✓ Amazon Verified Purchase
Showing 7 of 30 Amazon reviews.
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