What is the life span on gas mask canisiters?

The lifespan of gas mask canisters varies depending on the type and conditions of use, but they typically have a shelf life of 5 to 15 years if stored properly in a cool, dry place. Once opened or exposed to contaminants, their effectiveness can diminish quickly. It's essential to check manufacturer guidelines and replace canisters regularly, especially if they show signs of wear or damage. Always ensure that the canister is within its expiration date for optimal protection.