I do have a humidor , and the humidity/temp is usually kept at 70%/70 deg. This is not a good idea for a gun safe . Why destroy good cigars ? The amount of moisture in them is unlikely to harm your guns if you have a dehumidifier in there , which you should . You can buy a good quality lockable humidor from any major premium cigar co. for very little , and you should . It' s the least you owe to your stogies . I' d reccomend the Thompson Cigar Co. , you can find their site on any search engine .