I have one of the huge shipping container ones in my 36 gun safe and no moisture. Just watch them and change them if they start showing signs of moisture.
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Beat me to it. There are a number of resources on the interwebs on lifespan in the safe and how long to "cook" them for recharge.Got one of these in my safe. With periodic recharging in the oven, it has worked well for years.
I have two of these, one in the safe, the other on top, in a zip-lock bag. When the indictor on the one in the safe turns pink, I swap it, then later, recharge two at once, in the oven.(3 hrs. @ 250 degrees)Got one of these in my safe. With periodic recharging in the oven, it has worked well for years.
You got lots of money. I can only afford the ones without a gay indicator splotch.I have two of these, one in the safe, the other on top, in a zip-lock bag. When the one in the safe turns pink, I swap it, then later, recharge two at once, in the oven.
I might have to look into one of those. I have the little rechargeable dehumidifiers and some bags but I am not sure those are the best. I like the bags for my ammo cans but for my safe I am always on the look out for an upgrade.
But seriously, the unscented variety of this tied up in an old sock worked for years for my ammo cans.