Unverified85% confidenceFactTime unknown
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
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85%
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Long-term
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Unverified泡棉（PU/慢回弹）耳塞对低频噪音（打鼾、空调、飞机引擎）衰减更好，硅胶耳塞对高频噪音更有效但低频封闭性差，混合场景优先选泡棉89% 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89% 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泡棉耳塞对低频（飞机引擎、地铁隆隆声）衰减更强，硅胶耳塞对高频（人声、键盘声）表现好但低频隔音弱5-10dB87% similarUnverified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。87% similar
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