. These are required for (like USBs, hard drives, or CDs), which are much more sensitive to heat than paper.
Layers of gypsum or cementitious materials are cast inside the steel shell. These materials contain moisture that, when heated, is released as steam, keeping the internal temperature significantly cooler than the exterior. fire proof files
Durable outer plates act as the first line of defense against impact and flames. These materials contain moisture that, when heated, is
. This is the standard for protecting , as paper begins to char at approximately Class 150/125: Maintains internal temperatures below This is the standard for protecting , as
When choosing a file, look for certifications from . The rating indicates how long the file can withstand a fire and what it is designed to protect: Class 350: Maintains an internal temperature below