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夜猫测试，台式制氧机开机，不用鼻管，空气中的氧浓度会上升吗？
平原安装弥散式制氧机氧，台式制氧机不使用鼻氧管，对室内空气中的氧浓度提升效果不大，达不到医用治疗和保健的效果。 更多制氧机知识，可全网搜索，夜猫制氧机
制氧机的故事86/160
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