Question 13 of 30
What is the maximum reliable shelf life of a filter gas mask canister if the seal is unbroken?
A
1 year from the date of manufacture
B
3 years from the date of manufacture
C
5 years from the date of manufacture
D
7 years from the date of manufacture
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Answer & Explanation
The correct answer is Option C: 5 years from the date of manufacture.
The shelf life of filter canisters is limited by the degradation of the absorbent materials over time. Most manufacturers stipulate a 5-year maximum shelf life for sealed canisters to guarantee integrity.