[KongchangAI]
Unverified88% confidenceFactTime unknown

医用外科口罩执行YY 0469标准,细菌过滤效率(BFE)≥95%,颗粒过滤效率(PFE)≥30%,通气阻力≤49Pa/cm²;KN95口罩(GB2626)过滤效率≥95%但呼吸阻力显著更高

1
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88%
Confidence
Long-term
Relevance
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