Unverified90% confidenceTradeoffTime unknown
便携机与家用机的权衡：便携机为控重压缩了分子筛体积，流量普遍≤3L/min且高流量下浓度快速衰减；重症或需5L/min以上大流量者应选家用大机，便携性与高流量高浓度不可兼得
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