3M 60921 vs 60926: OV/P100 vs Multi-Gas/P100 Compared (2026)

The Smallest vs the Broadest 3M Cartridge — Same Mount, Very Different Coverage

Reviewed by WC Safety Editorial Team — Last updated: June 2026.

Short answer: The 3M 60921 protects against organic vapor + P100 particulate — and nothing else. The 3M 60926 is the multi-gas cartridge: organic vapor, acid gases, ammonia, methylamine, formaldehyde, and hydrogen fluoride, plus the same P100. If any of those extra gases are in your hazard assessment, the 60921 is non-compliant and you need the 60926 (or, for acid gas only, the 60923).

Selection Rule: OSHA 29 CFR 1910.134 requires cartridge choice to follow a documented hazard assessment. The 60921 and 60926 are the two ends of the 3M combination-cartridge range — don't default to the 60926 "to be safe," and never run a 60921 where the 60926's gases are present. See the 3M Cartridge Guide for the full method.

Quick Comparison: 60921 vs 60926

Prices are approximate street prices and vary by retailer and pack size.

3M 60921 vs 60926: Side by Side

What the 60926 Adds — and Whether You Need It

The 60921 and 60926 share an identical organic-vapor carbon bed and the same P100 particulate media. The 60926 layers in additional sorbents for acid gases, ammonia, methylamine, formaldehyde, and hydrogen fluoride. That extra chemistry is the entire reason for the price difference — and it only earns its keep when those gases are actually present.

• If you only face solvents and dust: the 60921 is the correct, lower-cost choice. The 60926's extra sorbents add weight and cost without adding protection you'll use.
• If acid gas is the only extra hazard: the 60923 is usually the smarter middle step — see the 60921 vs 60923 guide.
• If ammonia, formaldehyde, or HF appear: the 60926 is the only one of the three that covers them. There is no cheaper compliant option among these cartridges.

Want the full three-way view? See 3M 60921 vs 60923 vs 60926.

When to Choose Each

Choose the 3M 60921 when:

• Organic vapors and particulates are your only hazards
• Applications: solvent-based painting, lacquering, degreasing, resin work
• You want the lowest cost per cartridge

Choose the 3M 60926 when:

• Your exposure profile includes acid gas, ammonia, methylamine, formaldehyde, or hydrogen fluoride
• Applications: ammonia refrigeration, formaldehyde in labs/embalming, HF etching, multi-process chemical plants
• You want one cartridge to cover several gas hazards at once

Compatible Facepieces

Both cartridges fit every 3M half mask respirator on the bayonet mount — 6000, 6500, and 7500 series — and the 6800/6900 full facepieces. For the broad-spectrum 60926, many chemical-plant users pair it with a 3M full face respirator for eye protection. Browse the full range in respirator filters & cartridges.

Frequently Asked Questions