This study developed a portable extinguishing equipment that can extinguish A-class, B-class fire. This equipment is made of Water Mist Gun, controlling board, decelerator, pump, engine, and etc,. This equipment is formed mist water when pressurized water with high pressure flows through a radial shape nozzle. As a result of several efficiency tests, it is developed nozzle and equipment that are not clogged, and improved the extinguishing efficiency. This developed equipment indicated a excellent effect of initial extinguishment of fire in a vulnerable area where it is difficult to approach such as temple, and traditional market.

• 유종식(Department of Automobile & Machinery, Daewon University College) | Jong-sik Yoo
• 김철수(School of mechanical and automotive engineering of Gangneung-Wonju National University) | Chul-soo Kim Corresponding Author
• 고상우(Keitech Engineering Co., Ltd.) | Sang-woo Ko
• 강신중(Keitech Engineering Co., Ltd.) | Sin-jung Kang