Yale fire safes for home security The entire range has been built and thoroughly tested to withstand intense heat and humidity, leaving the most precious documents in good hands. Two types of highly resistant safe-boxes guarantee a high level of fire resistance protection. The Yale Fire Safes for Documents protects passports and all precious paper documents. The Yale Data Fire Safe contains an additional "safe within a safe" insulation layer. This protects extra sensitive digital data, whether they are on an external hard-drive, CDs, DVDs or tapes.