With traditional dry powder fire extinguishers, the reach of the ejected dry powder is short and often not concentrated enough to extinguish a fire effectively. This also means that the person fighting the fire has to move quite close to the flame to do the work effectively, which is threatening to personal safety.
Precise Spray reinterprets traditional fire extinguishers with an extendable nozzle that can be adjusted according to different scales of fire. In this way, the reach of the dry powder can be freely adjusted and the nozzle can extend deep into the flames to put out the fire rapidly while keeping the person fighting the fire at a safe distance.
To use, simply pull out of the safety pin, adjust the length of the nozzle to a suitable distance, press the ejection button and align with the core of the flames to start extinguishing the fire. In the process, the appropriate pressure can be adjusted by pressing the pressure regulator.
Dalian Minzu University, China
Prof. Bao Haimo, Qiao Song
Lin Ziao, Wang Jiabin, Xu Kun, Zhang Furong, Zhang Jingchen, Zhang Lin, Zhang Zhen, Zong Baihan