Unverified80% confidenceSolutionTime unknown
改善室内CO₂标准路径：先用监测器测出峰值时段和浓度→＜1000ppm仅需定时开窗；1000~1500ppm加装机械新风；持续＞1500ppm需评估新风换气量是否匹配房间人数（每人约30m³/h）
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80%
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