Unverified82% confidenceFactTime unknown
3M Classic系列泡棉耳塞NRR为29dB,材质较硬膨胀力大隔音强;3M No-touch款设计避免手指触碰塞体减少污染,适合卫生要求高者
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
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