Originally Posted By: BigCityHillbilly
I can remember reading somewhere that a typical gas mask filter is going to deteriorate after so many years of storage, so it kind of makes me wonder if a gas mask is going to protect you if you've had one in storage for x number of years. LW.


Gasmasks are made from rubber, which will degrade after time. This will cause masks to leak. The problem generally can't be detected by the wearer, but only by testing equipment. The shelf life of gasmask are usually about 10 years and the canisters range from 5 to 20 years.
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