I just got my first gun safe.
It's a Winchester that I got from Sam's Club.
I installed florecant battery powered light in it.
I like to know the best product to eliminate moisture from it and if adding a product like "Scotts Guard" to help keep the cloth clean is a good idea.
You can go pretty high tech / high price with this, it depends on how moist the area is as to what you need, in most cases just a few bags of silica desiccant will do, you can follow that up with some humidity indicator, either a guage or they sell cards / paper indicators as well. If it very moist then you can get a full blown de-humidifiers for the safe.