2019 Volume 39 Issue 4 Pages 460-466
If a dry chemical powder extinguisher is used for operating room fires, the fine powder released from the portable extinguisher is scattered everywhere in the operating room. This can damage many electrical and mechanical devices. On the other hand, gaseous extinguishing agents like carbon dioxide cause no damage to electrical devices. However, carbon dioxide gas becomes toxic to the human body as its concentration increases. Therefore, the installation of carbon dioxide extinguishers in small spaces is regulated by the Japanese Fire Service Act. This paper provides basic information on the use of dry chemical powder fire extinguishers and carbon dioxide fire extinguishers in operating rooms and explains how to install carbon dioxide fire extinguishers in operating rooms.