Cabinets maintain interior temperatures below 177°C (350°F) in ambient temperatures reaching 927°C (1700°F) for 1 hour. The char point of paper is only 230°C (420°F).
Valuable documents, mailing lists and critical records are kept safe from fire. Each drawer is independently insulated to protect documents even when another drawer is left open. Key operated plunger lock secures all drawers.