Unverified90% confidenceCautionTime unknown

隔音量约16-20dB平坦衰减，适合音乐会/演唱会场景，但对于极高噪音环境（如射击、重型机械）保护不足，需要更高NRR的耳塞

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Unverified射击/装修/演唱会等高强度噪音需NRR≥33dB的PU海绵塞或双重防护（耳塞+耳罩）；持续噪音超过85dB时单一耳塞不足以保护听力89% similar Unverified音乐会/需要保留语音清晰度的场景选'均衡衰减型'滤波耳塞（如带-15dB/-25dB滤片），普通泡棉塞会过度衰减高频导致声音发闷失真86% similar

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