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睡眠/邻居噪音场景选NRR≥30dB的慢回弹PU海绵塞；打鼾同住者、街道施工等强低频噪音需NRR≥33dB并配合硅胶耳罩使用

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隔音耳塞category

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Unverified睡眠隔绝打鼾（低频噪音）应选NRR≥32dB的慢回弹泡棉耳塞，硅胶耳塞对低频衰减普遍不足，标称NRR多在22-27dB86% similar Unverified解决'室友/环境吵闹影响睡眠'需求的标准路径：先测主要噪声频率→中高频人声鼾声选NRR 30+慢回弹泡棉塞→低频轰鸣或需长期用选主动降噪→侧睡人群优先低突出度睡眠专用塞→怕遗漏可搭配助眠白噪音86% similar

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