Unverified75% confidenceDecision RuleTime unknown
便携投影运行噪音多在28-38dB，风扇噪音在安静环境下明显，噪音＞35dB在卧室观影会干扰，注重安静应选标注噪音≤30dB的机型
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Unverified投影机风扇噪音在安静卧室很明显，选购关注标称噪音≤30dB，超过35dB的机型在观影安静片段会干扰，激光/高亮机型散热需求大噪音通常更高92% similarUnverified运行噪音超过32dB在安静观影场景明显可闻，卧室使用建议选实测噪音＜30dB的机型，高亮度机型散热风扇噪音通常更大92% similarUnverified运行噪音超过30dB在安静卧室夜间观影会明显干扰，便携机因风扇小转速高噪音常达32-38dB，对噪音敏感者需查阅实测噪音数据91% similarUnverified卧室夜间使用应选噪音≤36dB的机型，超声波比蒸发式安静但要注意水泵和出雾声；标称28dB级别才真正接近静音无感87% similarUnverified卧室过夜使用应选噪音≤30dB的机型，标称35dB以上在夜间安静环境会明显可闻；超声波机型换水后气泡破裂声也是噪音来源，需看实测而非标称87% similar
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