As long as it is a crowded place, it is necessary to set up perfect fire control facilities. The key fire inspection smells of smoke. Water mist has little effect on smoke perception, mainly dust. With more dust, he is less sensitive. To install smoke sensors, you must install an automatic alarm system, because they are the same. As long as your fire hydrant pressure is up to standard. 0。 075 megabytes will do, and there will be no problem with the fire inspection. The fire department won't let you go if you don't install it. The money they fined you once is enough for you to install an automatic alarm device. In addition, for the safety of consumers, you should also do a good job in fire control.