Partially Verified65% confidenceFactTime unknown
NRR 31dB是3M PELTOR系列中被动隔音最高的型号，适合需要极致隔音的场景如射击、重型机械作业、严重噪音环境下的睡眠
3
Sources
65%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
UnverifiedNRR 31dB是3M PELTOR系列被动隔音最高等级，隔音性能极强，但代价是体积大、重量高、夹紧力强，舒适度在该系列中最低85% similarUnverifiedNRR 33dB属于泡棉耳塞的高降噪档位，适合工业、射击、睡眠等对隔音要求高的场景81% similarPartially VerifiedNRR 30dB 属于民用被动隔音耳罩中的顶级水平，适合需要极致隔音的场景如射击、重型机械作业或对噪音极度敏感的睡眠需求，普通办公降噪场景会显得过剩且不必要笨重80% similarUnverified3M PELTOR等工业级耳罩式通讯耳机采用双杯降噪结构，NRR普遍在24-31dB，配噪音消除麦克风，是船舶/海事高噪音通讯的行业主流方案79% similarUnverifiedPU慢回弹海绵耳塞NRR普遍32-33，是被动降噪的性能天花板，适合工厂/打鼾/飞机等强噪音场景78% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/633892API
curl https://kongchang.com/api/v1/knowledge/claims/633892MCP
get_claim(id=633892)