Safe (container)
Safes are available in many different security levels. These range from ones made to protect from common burglars to those made to protect from professional thieves and spies. Fire ratings are usually based on how long the safe can be in a common structure fire before the inside of the safe reaches 175 degrees Celsius. This is the temperature at which paper and wood are destroyed. The fire rating usually ranges from 15 minutes up to 3 hours. Some safes are also waterproof, which protects the contents from flood and from getting wet when a fire is put out by firefighters. A large safe that is part of a building is called a vault. Vaults have usually one or more rooms.