Unverified80% confidenceCautionTime unknown
硅胶材质对低频噪音（如打鼾、引擎低鸣）的衰减效果弱于泡棉，若主要需求是隔绝低频噪音应优先考虑高 NRR 泡棉耳塞。
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Unverified对付打鼾、交通轰鸣等低频噪音，泡棉耳塞优于硅胶/蜡质，因泡棉密度高、封闭性好，硅胶对低频衰减普遍差5-8dB89% similarUnverified飞机/高铁降噪优先看低频衰减能力，泡棉耳塞对低频（引擎轰鸣、发动机噪音）效果优于硅胶，硅胶更擅长中高频88% similarUnverified泡棉塞对低频噪音（鼾声/发动机轰鸣/空调低鸣）衰减最强，硅胶塞对高频（人声/键盘声）更有效但低频漏音明显88% similarUnverified泡棉耳塞（慢回弹PU/PVC）对低频轰鸣（发动机、地铁、装修钻声）衰减效果明显优于硅胶耳塞，硅胶耳塞对低频封堵较弱87% similarUnverified低频噪音（马路车流、鼾声）比高频更难隔绝，慢回弹PU海绵耳塞对低频衰减优于硅胶，硅胶三节翼款对高频（说话声、键盘声）更有效86% similar
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