Libraries serve as one of the main places that preserves human cultural property. Thus, whether human history and cultural education is preserved and transmitted depens on the security of libraries. From The Los Angeles Central Library fire of 1986 to the latest fire Egypt's Alexandria Library fire of 2003, it is evidend that fire has become one of the most serious threats to rare book collections. However, current fire codes only focus on the protection of a library's structures and occupants, with regulations necessary for the protection of archives or documents being inadequate. Consequently, most librarians in Taiwan choose to set up expensive gas-based fire suppression systems. Nevertheless, long-term statistics and evaluations from developed countries indicate such systems are not necessarily the best alternative to preventing fire damage.