Unverified80% confidenceTradeoffTime unknown
纯度越高越有效但香型越单一且刺激，睡眠喷雾类的精油稀释浓度控制在1-3%较安全；纯精油直接嗅吸虽浓郁但可能过度刺激呼吸道影响入睡
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80%
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Long-term
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Unverified香味强度看香精浓度，助眠场景选择淡香型（香精含量约6-8%），过浓香气反而刺激嗅觉神经导致兴奋难眠，浓香（10%以上）适合白天空间除味而非睡前88% similarUnverified香型越浓越易掩盖发热层氧化异味，但香精浓度与致敏概率正相关，追求助眠仪式感可选淡香，追求安全选无味87% similarUnverified香味浓度偏淡，对气味敏感或需要浓郁香薰氛围才能入睡的人效果有限86% similarUnverified带香氛功能的睡眠调节器优先选无水扩香/雾化分离设计，超声波加湿式扩香在卧室易导致精油残留和局部湿度过高，滋生霉菌86% similarUnverified喷雾的持香与浓度相关，精油浓度过高反而在密闭卧室易致头痛/恶心，助眠用途宜选淡雅型，'越香越好'是误区85% similar
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