[KongchangAI]
Unverified88% confidenceTradeoffTime unknown

防护等级越高透气阻力越大,N95呼气阻力可达医用外科的2-3倍;长时间佩戴(如通勤、上课)优先选医用外科,孕妇、心肺功能较弱者慎用高密封N95

1
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88%
Confidence
Long-term
Relevance
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