I use DampRid. I have heard people say that some dessicants can emit corrosive vapors, but I have used DampRid for about 15 years and haven't seen any adverse effects. The safe is in a combined basement/shop/garage, and I also have a dehumidifier running at all times. It's a pretty large, open basement, but a simple floor model is able to keep the humidity at 35% or so.
|