3M 2091 Vs Honeywell North 7580P100

3M 2091 vs Honeywell North 7580P100: P100 Filter Comparison (2026)

Published June 9, 2026 · Last updated July 27, 2026

The 3M 2091 and the Honeywell North 7580P100 both carry the same NIOSH P100 rating — 99.97% filtration efficiency, oil-proof — and protect against exactly the same category of particulate hazards. The only decision is which respirator system you already own: the 3M 2091 mounts on the 3M bayonet, and the 7580P100 mounts on the North bayonet. They are not cross-compatible, and there is no technical reason to prefer one over the other if you are starting from scratch. If you already run North respirators, the 7580P100 is your filter; if you run 3M 6000, 6500QL, or 7500 series masks, the 2091 is your filter.

Quick Answer: Which P100 Filter Should You Buy?

Both filters deliver identical NIOSH P100 protection. Buy the 3M 2091 if you own a 3M 6000, 6500QL, or 7500 series respirator. Buy the Honeywell North 7580P100 if you own a North 5500, 7700, 5400, or 7600 series respirator. Connection compatibility is the entire decision.

View the 3M 2091 on WC Safety or buy it on Amazon:

View the Honeywell North 7580P100 on WC Safety or buy it on Amazon:

3M 2091 vs Honeywell North 7580P100 at a Glance

Product Profiles

3M 2091 P100 Respirator Filter

The 3M 2091 is the standard P100 particulate filter for the 3M 6000, 6500QL, and 7500 half-mask series and 3M 7800S and FF-400 full-face series. It delivers 99.97% filtration efficiency against oil and non-oil aerosols — dust, mist, fume, and metallic particulate — via the 3M bayonet twist-lock. The low-profile design clears most welding helmet chin clearances, and the filter threads directly onto any compatible 3M 6000-series gas cartridge to add particulate protection over chemical protection. Sold as a pair.

Honeywell North 7580P100 P100 Respirator Filter

The Honeywell North 7580P100 is the equivalent filter in the North respirator ecosystem — P100 rated, 99.97% efficient, oil-proof, sold as a two-pack. It uses the North bayonet connection shared by the 5500-series TPE half mask, the 7700-series silicone half mask, the 5400-series full face, and the 7600-series silicone full face. Like the 3M 2091, it can be retained directly over a North OV or multi-gas cartridge so one assembly provides both chemical and particulate protection without buying a combination cartridge.

What Each Filter Protects Against

Both filters share the same NIOSH P100 protection class and the same limitations. Neither provides any gas or vapor protection on its own. The hazard matrix is identical:

If your job involves both particulate and gas/vapor hazards, see organic vapor vs P100 — when you need both and consider a combination cartridge such as the 3M 60921 (3M ecosystem) or the Honeywell North 7581P100L (North ecosystem).

Key Differences Between the 3M 2091 and Honeywell North 7580P100

1. Connection System — The Only Real Difference

The 3M 2091 uses the 3M bayonet, a quarter-turn twist-lock standard shared across 3M's 6000, 6500QL, and 7500 half-mask and full-face lines. The Honeywell North 7580P100 uses the North bayonet, a physically incompatible fitting used by the North 5500, 7700, 5400, and 7600 series. These two bayonets are not interchangeable — you cannot mount the 2091 on a North respirator or the 7580P100 on a 3M respirator. Connection system compatibility is the entire purchase decision for these two products. For a full explanation of why respirator fittings are not universal, read how to choose a respirator cartridge.

2. Respirator Ecosystem and Upgrade Path

Choosing between these two filters also locks you into an ecosystem for all future cartridge and filter purchases. The 3M ecosystem offers a deep catalog: the 3M 2097 adds nuisance OV relief to the same P100 media, and the 3M 7093 is the hard-case P100 canister. For gas/vapor combinations, the 3M 60921, 60923, and 60926 all mount on the same bayonet. The North ecosystem similarly offers the 7581P100L through 75SCP100L combination cartridges, all on the same North bayonet. Review the full 3M filter collection and North filter collection before committing.

3. Stacking Over Gas Cartridges

Both filters are designed to be retained over their respective brand's gas cartridges to create a combined particulate + chemical assembly. On the 3M side, the 2091 stacks directly over 3M 6000-series cartridges (such as the 3M 6001 or 3M 6003). On the North side, the 7580P100 stacks over North gas cartridges. This stacking capability means you can build up protection for complex environments — welding with degreaser fumes, for example — without buying a dedicated combination cartridge. If you need combination protection from the factory in a single unit, see the 3M 60921 and Honeywell North 7581P100L listed above.

4. Nuisance OV Relief Option

The 3M lineup includes the 3M 2097, which adds a layer of nuisance-level organic vapor odor relief to the same P100 filter body. Honeywell North does not publish a direct equivalent in the standalone disc format — to get OV + P100 in the North ecosystem you step up to the integrated 7581P100L cartridge. This is a minor edge for the 3M ecosystem if a nuisance-relief disc specifically is useful to your work.

5. Low-Profile Design (3M 2091)

The 3M 2091 is specifically noted for its low-profile disc geometry, which provides extra clearance under welding helmets with tight chin spacing. The Honeywell North 7580P100 is also a disc-style filter, but the 3M 2091 has a longer history of documented compatibility with auto-darkening helmet clearances. If welding helmet fit is a priority, the 3M ecosystem has a slight advantage here. See our guide on best respirator for welding fumes for helmet clearance recommendations.

Which P100 Filter Should You Buy?

Buy the 3M 2091 If…

• You own a 3M 6000, 6500QL, or 7500 series half mask
• You own a 3M 7800S or FF-400 full facepiece
• You want to stack P100 over an existing 3M 6001, 6003, or 6006 gas cartridge
• You need a low-profile P100 disc with documented welding helmet clearance
• You want nuisance OV relief alongside P100 — step up to the 3M 2097

Buy the Honeywell North 7580P100 If…

• You own a Honeywell North 5500 or 7700 series half mask
• You own a North 5400 or 7600 series full facepiece
• You want to stack P100 over an existing North N75001L OV or 75SCL multi-gas cartridge
• You want the same P100 protection at the best available price for the North platform
• Your facility standardizes on North respiratory equipment

Best Applications for P100 Particulate Filters

Silica Dust and Concrete Work

Respirable crystalline silica generated by concrete cutting, grinding, and masonry work is regulated under OSHA 1926.1153, which specifies an assigned protection factor (APF 10 or 25) rather than a filter class. P100 is the usual choice for sustained work because it is oil-proof and carries no oil-exposure time limit. Both the 3M 2091 and the 7580P100 are appropriate choices — your respirator brand determines which you buy. For a deeper look at filter selection for this hazard, see best respirator for silica dust (2026).

Welding Fumes and Metal Grinding

Both filters handle welding fume particulate at the P100 level. The 3M 2091's low-profile disc design gives it documented clearance under many auto-darkening welding helmets. For jobs where both welding fumes and degreaser vapors are present, stack the filter over an OV cartridge or use a combination cartridge — see the welding fumes respirator guide for the complete selection logic.

Mold Remediation and Lead Abatement

P100 is the standard filter class for mold spore and lead dust control. Both filters qualify. The P100 oil-proof rating also covers any oil-based biocide mist used during remediation. Use with a properly fit-tested half mask or full facepiece appropriate to the exposure level.

Oil Mist and Machining Environments

Oil-containing metalworking fluids generate aerosols that require P-rated media — N-rated filters degrade in oil environments. Both the 2091 and 7580P100 are fully oil-proof (the "P" in P100), making them the correct choice for CNC machining, grinding, and any operation using cutting oil. For context on N vs P ratings, see respirator filter types explained.

Combined Particulate and Chemical Hazards

When a job involves both particulate and gas/vapor hazards — spray painting, solvent degreasing with dust, or chemical processing with fume — stack the appropriate P100 disc over the corresponding gas cartridge. On the 3M side: 3M 6001 + 3M 2091. On the North side: North N75001L + 7580P100. Alternatively, use an integrated combination cartridge to reduce the number of components. See P100 vs N95 — which do you need? for a refresher on why P100 is often the right starting point.

Respirator Compatibility

3M 2091 — Compatible 3M Respirators

Honeywell North 7580P100 — Compatible North Respirators

Related Guides

• Respirator Filter Types Explained — N95, R95, P100 and beyond
• P100 vs N95 — Which Do You Need?
• How to Choose a Respirator Cartridge
• Respirator Cartridge Color Chart — NIOSH Color Codes Decoded
• Organic Vapor vs P100 — When You Need Both
• Honeywell North Cartridge Buyer's Guide
• 3M Filter and Cartridge Guide
• Best Respirator for Silica Dust (2026)
• Best Respirator for Welding Fumes

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