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凯亚5L制氧机5AC实际噪音和氧浓度测试
实际噪音值为57-61分贝。 此型号机器2021年9月份改进过一次，四通阀，冬天故障率会增加。 2023年12月再次改进为金属阀，低温测试，故障率大大降低。 更多制氧机知识，可关注，夜猫制氧机
制氧机的故事137/166
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