Unverified85% confidenceDecision RuleTime unknown

NRR≥30dB或SNR≥35dB才适合睡眠时隔绝鼾声、马路噪音；NRR 22-28dB适合通勤、飞机、图书馆等中等噪音场景

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Unverified睡眠场景优先看SNR值而非NRR，SNR≥35dB才能有效阻隔伴侣鼾声（打鼾声压级约60-90dB），低于30dB仅适合遮蔽轻微环境噪音88% similar 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22-27dB85% similar Unverified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84% similar

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