Unverified86% confidenceFactTime unknown
带热回收的双向流新风优于单向流(仅送风或仅排风)：双向流能主动排出室内污浊空气并回收温度，室内不会形成负压导致灰尘从门缝渗入
1
Sources
86%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified无管道壁挂机的新风与排风共用一个墙孔或分设两孔，双向流机型才有热交换；单向流（仅送风或仅排风）机型无热回收，冬夏能耗和舒适度较差，选购时需区分单向流/双向流80% similarUnverified管道式新风送回风口布局遵循'污染区回风、清洁区送风'原则，送风口设卧室客厅、回风口设走廊或卫生间过道，避免同一房间送回风短路造成换气无效78% similarUnverified双向（送排一体）换气扇适合密闭无对流的房间实现新风循环，单向排风扇仅排不补需门窗有进气缝隙，完全密封房间用单向扇会因负压导致排风量骤降78% similarUnverified热风脱水机选背部/后置出风口设计优于底部进风：底部进风机型汁水易滴入电机导致故障，后置横流风道受热更均匀无需中途换托盘位置76% similarUnverified机箱风道搭配方案：前进后出+顶部出风形成正压差（进风数≥出风数）可减少内部积灰，进风口建议加防尘网；纯负压虽散热略好但缝隙易积灰76% similar
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