This is actually much more simple than the others think. Just bring your safe to my office in Odessa. Problem solved.
I picked up some dissectant at walmart that comes in a little blue bowl. It is made by airBoss and is classified as a closet de-humidifier. It has a layer of dissectant at the top and the moisture it traps can be seen at the bottom. When the level of water rises up so high, just toss it out and replace with a new bowl. I found it in the closet/storage isle. 3 bucks a pop. Works like a charm in my safe.
For very dry instrument compressed air, dessicant dryers are sometimes used in combination with refrigerated air dryers. There are two dessicant chambers that switch functions. One is drying the compressed air while the other is heated to "recharge" it. A timer switches the chambers from operation to recharge cycles.
Flash
I have a 64 gun safe which, when purchased, I put a qt. container of Desiccant.
The can's contents have never changed color or appeared damp.
I recently bought a hygrometer, & it states the humidity is ~70% which I believe is
higher than desired.
Anybody have any experience or recommendations?
Marine equipment suppliers often stock electric dehumidifiers for use in "closed" boat cabins during storage.
Did I say ths somewhere?Well, well. . . . . "only used when I am in the room"
Maybe THAT is the problem ?.