Unverified80% confidenceDecision RuleTime unknown
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
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Unverified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。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隔飞机/高铁引擎噪声（低频）优先选SNR≥30dB的慢回弹海绵塞，海绵对低频衰减优于硅胶；隔人声/键盘声（中高频）硅胶塞即可满足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87% 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85% similar
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