[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

管道风机风量选型按房间体积×换气次数计算:卫生间需5-10次/小时换气,厨房需10-15次/小时。例如3㎡卫生间层高2.6米,体积约7.8m³,卫生间取10次即需风量≥78m³/h,但需在实际管道静压下达到,故标称风量应留30%余量选100m³/h以上

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