消防应急逃生疏散标志,从表现形式分类,主要有视觉标志和听觉标志两大类。代表视觉标志的主要产品有安全出口标志、安全疏散指示标志、安全警示标志、应急灯、疏散灯等。代表听觉标志的主要产品有消防应急公共广播系统、警铃、警报等。从目前来看,绝大部分建筑物内使用的还是视 Fire emergency evacuation evacuation signs, from the manifestations of classification, there are two major categories of visual signs and auditory signs. The main products that represent the visual markings are safety exit signs, safety evacuation signs, safety warning signs, emergency lights and evacuation lights. Representative auditory signs of the main products are fire emergency public address system, alarm bell, alarm and so on. From the current point of view, the vast majority of buildings used or depending on