Unverified78% confidenceDecision RuleTime unknown
香精油浓度决定持香与安全的平衡：家用扩香精油浓度15-20%较为理想，低于10%扩香微弱、高于25%易引发头晕，且DPG/IPM等稀释基质比例过高会缩短留香
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78%
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Unverified精油浓度15-25%为家用香氛甜蜜区：低于10%香味寡淡持续差，高于30%多为香精勾兑或过浓易头晕，浓度不标注的产品优先看是否含'fragrance oil'占比说明84% similarUnverified香精油浓度（fragrance load）在6%-10%为佳，低于6%扩香弱、闻不到，高于12%可能引起头晕头痛且香味刺鼻，天然精油（essential oil）比合成香精更贵但更柔和82% similarUnverified扩香浓度看香精含量，10%以上属高浓度扩香油持久且价格高，日常房间用3-5%浓度已足够，浓度过高在小空间会头晕82% similarUnverified精油浓度（香精含量）15%-25%为合理区间：低于10%扩香弱且需频繁翻藤，高于30%多为廉价溶剂勾兑、气味冲鼻且可能刺激呼吸道82% similarUnverified香精浓度（fragrance load）6%-10%为佳：低于6%冷香扩散弱，高于12%易产生刺鼻感和黑烟；标注含天然精油（essential oil）比纯合成香精更耐闻、头晕概率更低82% similar
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