Unverified75% confidenceDecision RuleTime unknown
静音需求家庭应确认电机运行噪音≤40dB，齿轮电机比无刷电机更吵，夜间自动模式会吵到睡眠
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Unverified选择运行噪音≤30dB的机型（相当于耳语级别），带电机旋转的投影仪机械噪音是常见踩坑点，安静的睡眠环境噪音应低于40dB86% similarUnverified卧室夜间使用或家有婴儿/宠物者，应选实测中档噪音≤70dB的机型；大吸力直流电机机型满档普遍78-85dB，长时间使用听感疲劳85% similarUnverified工作噪音应≤35分贝（相当于图书馆环境），电机运行噪音超过45分贝会干扰浅睡眠婴儿；优先选择直流无刷电机而非齿轮传动结构85% similarUnverified标称噪音≤65分贝属于较安静水平，开放式厨房或有睡眠敏感成员的家庭应选带隔音棉/多层降噪结构的机型，注意区分空载噪音与研磨时实测噪音85% similarUnverified拍打力度强的机型噪音普遍在75-80分贝，接近吸尘器水平，对噪音敏感或家有婴幼儿午睡者应关注实测分贝而非宣传值85% similar
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