Unverified85% confidenceDecision RuleTime unknown
选购时务必确认是否含单向阀配件，单向阀可防止患者呼出气体回流至施救者，是感染防护的关键部件；若未配备需另行购买兼容型号
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
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