From the Manufacturer
The H2300 provides protection from both fire and water. A continuous 360 degree jamb and waterproof seal completely insulates the interior from the threat of water invasion. Fire protection includes UL classified fire endurance for 1/2 hour as well as ETL verification for 30 minutes of fire protection of CDs, DVDs, USB drives, and memory sticks, up to 1550 degree Fahrenheit. A full-time spring latch seals the unit even when it is unlocked.
