American Security 3645027 Desiccant (Silica GEL)
Keep your safe moisture free with the AMSEC 3645027 desiccant bags. It comes with a total of 6 bags. These desiccant bags prevent rust & moisture damage. It comes with a humidity indicator which will change from blue to pink depending on how much humidity the bag absorbs. Once the indicator card changes from blue to pink, reactivate the desiccant by placing each bag in the oven at 225 degrees F for 12 hours.
Depending how large your safe is and how much humidity you have in your area will determine how many bags you need to place inside the safe. Smaller safes should use 1-2 bags and larger safes need 3-4.