人防呼唤按钮
人防呼唤按钮是指在滤毒式通风时，要实施控制人员出入，不同类型的防空地下室有不同的人数比例。当外部人员要进入防空地下室之前，首先要得到内部值班管理人员的允许才能进入。而且还要经过洗衣消间或简易洗消间消毒处理。为此而设置的联络信号。一般应安装在主要出入口的一道防护密闭门外侧，呼唤按钮应具有防护功能；
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青岛人设备一站式服务中心
