噪音是一种令人烦恼、讨厌、刺激、心神不安、分散注意力或有危害的声音。国外有些工厂统计资料证明:工人长期在80分贝以上噪音强度下生产操作,会使人们心跳加快、心律不齐、血压升高、血管痉挛等危害作用。近期内也会使工人干活精力产生疲乏,反应迟钝,易产生事故,降低生产效率。这点在北京第一皮鞋厂生产中得到证实,国内仿型气动制鞋机一般缺装气动消音器,其工人生产效率明显地低于英国制鞋机(均装有各式各样气动消 Noise is a disturbing, annoying, irritating, upset, distracting, or harmful sound. Some foreign factories statistics show that: workers long-term noise intensity in the 80 dB above production operations, will make people faster heart rate, arrhythmia, blood pressure, vasospasm and other harmful effects. In the near future, it will also make workers work tired, unresponsive, prone to accidents and reduce production efficiency. This is the first shoe factory in Beijing was confirmed in the production, the domestic imitation pneumatic shoe machine generally lack of pneumatic muffler, the workers production efficiency significantly lower than the British shoe machine (are equipped with a wide range of pneumatic consumer