[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

卧室睡眠使用应选最低档噪音≤30分贝的直流变频风扇,交流电机风扇最低档普遍在40分贝以上,安静环境下会明显影响入睡

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90%
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Long-term
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