billnikon wrote:
A safe will, by it's nature, trap moisture and actually increases it over time. Moisture, humidity enters the safe when it is open, no way around it, and it will be in their when the door closes. You can put in moisture reducing items that will reduce humidity. But trapped moisture over time can cause mildew within a closed safe.
Billnikon, I've heard same thing you said above but have never had a problem. Perhaps, I'm just lucky. I put silica packets in the safe and also, live in Southern Ca not far from Palm Springs where humidity is usually low. And, I must say, placing the camera and lenses in the safe over the last 15 or so years, I have never had any moisture or fungus problems. Other UHH posts are giving good advice too. I'm only saying what has worked well for me.