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3M 60921 & 60926 Respirator for Resin 3D Printing

byAris AlderLast Updated: October 31st, 2023

About the AuthorAris Alder

Aris Alder is a mechanical engineer with experience in the aerospace industry, 3D printing and indoor air quality. Aris Alder is a lead writer and video producer with 4D Filtration.

Respirators are a must-have for resin 3D printing and thankfully 3M has affordable facepieces and cartridges. Also, these respirators will work with FDM printers.

You will need to get organic vapor cartridges like the 60921 or 60926. These are combination cartridges that have a P100 filter for particulates and a layer of activated carbon for VOCs.

The 60926 cartridge gives the widest range of protection for resin 3D printing; however, it is not always available and is more expensive, so the 60921 is a good alternative.

If you are post-processing resin prints often, we recommend considering if a supplied air respirator is right for you.

3M 6502QL Respirator


Sizes Medium or Large & fits many 3M cartridges

3M Resin Respirator

3M 60921 Cartridge


Protection against particulates & organic vapors

60921 Cartridge for Resin Printing

3M 60926 Cartridge


Protection against particulates & organic vapors

60926 Cartridge for Resin Printing

Photo credits: 3M -

3M 6502QL Half Facepiece Respirator

The 60921 Cartridge protects against particulates and organic vapors

3M 60921 Cartridge

The 60921 Cartridge protects against particulates and organic vapors

3M 60926 Cartridge

The 60926 Cartridge protects against particulates, organic vapors, acid gasses, ammonia, and formaldehyde

  • Protection Focus: Organic Vapors, Ammonia, Chlorine, Chlorine Dioxide, Formaldehyde, Hydrogen Chloride, Hydrogen Fluoride, Hydrogen Sulfide, Methylamine, and Sulfur Dioxide
  • Instructions

The 60921 & 60926 Cartridge Lifespan

The cartridges should be replaced immediately if resin fumes or IPA are detected. 3M recommends that in an oil aerosol environment, the cartridge should be replaced after 40 hours of use or 30 days, whichever is first.

According to 3M, the cartridge's carbon will begin to fail after approximately 60 hours of exposure to a 1 mg/m3 concentration of IPA and 40 hours for 10 mg/m3.

If you would like to input chemicals and obtain a lifespan estimate, visit

We tend to replace our cartridges every 1-2 months, depending on how much we are printing.

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