3M 2091 P100 Respirator Filter

Product Overview

The 3M 2091 P100 Particulate Filter (SKU 2091) is a NIOSH-approved P100 particulate filter for 3M bayonet respirators. If you are searching for a 3M 2091 filter, a 3M 2091 respirator filter, or a 3M 2091 replacement filter, this is the part — sold and used as a pair. It captures dusts, mists, fumes, and other particulates

The 2091 attaches to every 3M bayonet facepiece — the 3M 6000 Series, 6500QL Series, and 7500 Series half masks, plus 3M full facepieces. Buyers choose the 2091 when the hazard is particulate and no gas/vapor protection is required. Browse the full lineup in the 3M respirator cartridges and filters collection.

Key Features

• Filter rating: P100 particulate
• NIOSH approved under 42 CFR Part 84
• 3M bayonet connection — compatible with 3M 6000, 6500QL, and 7500 half masks and 3M full facepieces
• Lightweight, low-profile design preserves field of view
• Sold and used as a pair — one on each side of the facepiece
• Pure particulate filtration with no gas/vapor media

Common Applications

The 3M 2091 is specified for particulate hazards. Common buyer applications include:

• Silica dust from concrete cutting and grinding
• Lead and heavy-metal dust
• Asbestos and mold remediation
• Welding fume and metal particulate
• Woodworking and general dust

A particulate filter does not protect against gases or vapors — for solvents, acid gas, or other vapors choose a gas/vapor or combination cartridge.

Compatible Respirators

3M bayonet cartridges and filters are not compatible with Honeywell North, MSA, Moldex, or 3M Secure Click respirators.

All compatibility above is based on the 3M bayonet connection shared across the 3M 6000, 6500QL, 7500, and 7800S platforms. The same bayonet geometry lets you standardize on one cartridge or filter line and move it between half masks and full facepieces. 3M bayonet parts do not fit Honeywell North, MSA, Moldex, or 3M Secure Click respirators, which use different connection systems — confirm your respirator before ordering.

Specifications

When to Choose This Product

Choose the 3M 2091 when the airborne hazard is P100 particulate — dust, mist, or fume — with no gas/vapor present. If you are unsure which protection class your task requires, the respirator cartridge selection guide walks through matching the cartridge or filter to the contaminant.

• Gas or vapor also present? Add a gas/vapor cartridge or choose a combination cartridge such as the 3M 60921 Organic Vapor / P100 Cartridge.
• Lower-cost particulate need? The 3M 5N11 N95 Particulate Filter N95 prefilter or 3M 5P71 P95 Particulate Filter P95 prefilter may suffice for non-oil dusts.

The correct cartridge is determined by the contaminant in your air, not by the respirator brand — a properly fit-tested 3M facepiece accepts whichever bayonet cartridge matches your hazard assessment. Confirm the airborne hazard through an industrial-hygiene assessment, then match it to the cartridge type using the buying guides below. If your exposure changes or your task adds a second hazard class, switch cartridges rather than relying on one part to cover everything — the related products on this page link directly to the alternatives most buyers add alongside the undefined.

Compliance & Replacement

This undefined cartridge is NIOSH approved under 42 CFR Part 84 and is intended for use within a written respiratory protection program (OSHA 29 CFR 1910.134), which includes hazard assessment, medical evaluation, and annual fit testing. Gas and vapor cartridges have no end-of-service-life indicator, so they must be replaced on a documented change-out schedule based on objective exposure data — never wait until you can smell or taste the contaminant. Air-purifying cartridges are not for use in oxygen-deficient or IDLH atmospheres; those conditions require supplied-air or SCBA protection.

Buyers running multiple 3M respirator families can stock one undefined line for the whole site. For help building a complete configuration — facepiece plus the right cartridge — use the cartridge selection and compatibility guides below, or browse the full 3M filter and cartridge range in the collection.

Related 3M Cartridges and Filters

• 3M 2097 P100 Filter with Nuisance OV Relief
• 3M 2291 Advanced P100 Particulate Filter
• 3M 60921 Organic Vapor / P100 Cartridge
• 3M 5N11 N95 Particulate Filter
• 3M 5P71 P95 Particulate Filter

Helpful Buying Guides

• Shop all 3M respirator cartridges and filters
• How to choose a respirator cartridge (selection guide)
• 3M cartridge & filter compatibility guide
• Respirator cartridge color code guide
• How long do respirator cartridges last (replacement guide)

FAQ

Does the 3M 2091 fit the 3M 6000 Series respirator?

Yes. The 2091 uses the 3M bayonet connection and fits all 3M 6000 Series (6100/6200/6300) half masks and 6000-series full facepieces.

Does the 3M 2091 fit the 3M 7500 Series respirator?

Yes. It fits the 3M 7500 Series (7501/7502/7503) and the 6500QL Series — all use the same bayonet connection.

Is the 3M 2091 sold as a pair?

Yes — filters are used two at a time and are sold as a pair.

What is the 3M 2091 filter used for?

P100 particulate protection — silica, lead, asbestos, mold, welding fume, and general dust. It is 99.97% efficient against oil and non-oil particles.

Does the 3M 2091 protect against solvents or gases?

No — it is a particulate filter only. For solvents, acid gas, or other vapors, choose a gas/vapor or combination cartridge.

When should the 3M 2091 be replaced?

Replace it when breathing resistance noticeably increases, or if the filter is damaged, soiled, or wet.