Reference

Choosing a respirator cartridge starts with one question - what is in the air - and ends with a NIOSH-approved cartridge matched to your mask and a change-out schedule. This guide maps contaminants to cartridge types across organic vapor, acid gas, ammonia, multi-gas, and P100, and clears up the 3M filter attachment rules.

Respirator cartridges have two separate clocks: a sealed shelf life and an in-use service life, and confusing them leaves workers breathing through a spent filter. This guide covers how to read the printed expiration date, how to store sealed and opened cartridges, and why gas and vapor cartridges differ from P100 particulate filters.