Just be careful with dessicants. I put several in a safe one time, and forgot to check them. After about a year I saw a line of something dripping out of the front of the safe. The dessicants had absorbed to their max, and were dripping goo. The safe was pretty airtight, but of course it was opened fairly often, allowing moisture in. Nasty cleanup. I suspect if the container holding the dessicant is not fully airtight, moisture will diffuse in over time and the dessicants will do their job of absorbing them, but will eventually fill up and leak.
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