Unverified90% confidenceDecision RuleTime unknown

过滤降噪耳塞的降噪值应看SNR或NRR，通勤/办公选SNR 18-22dB即可保留人声与广播提示音；工业/射击场景需SNR≥26dB或NRR≥28

1

Sources

90%

Confidence

Long-term

Relevance

-

First Seen

Sources

Related Entities

过滤降噪耳塞category

Related Claims

Unverified射击/工厂等高噪环境需SNR≥30dB（约NRR33）的海绵塞，音乐会/娱乐场所选SNR 18-25dB的滤波耳塞（保留人声频段）而非死堵型88% similar Unverified耳塞降噪能力看SNR值，泡棉耳塞SNR普遍在33-38dB，硅胶耳塞多为20-27dB。飞机、火车等持续低频噪音场景选SNR≥33的泡棉款，宿舍鼾声等中高频噪音场景硅胶款也够用83% similar

Cite This Claim

Stable URI

https://kongchang.com/claim/227375

API

curl https://kongchang.com/api/v1/knowledge/claims/227375

MCP

get_claim(id=227375)