[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

热交换效率与阻力/噪音成反比:交换芯越密效率越高但风阻越大,风机需更高转速导致噪音上升。追求低噪音(卧室<30dB)往往需牺牲部分换气量或热回收效率

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Long-term
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