Unverified85% confidenceDecision RuleTime unknown
判断新风/通风是否充足看CO₂而非甲醛:CO₂>1000ppm说明通风不足人会困倦,>1500ppm需立即开窗。选带NDIR红外CO₂传感器的机型(真实测CO₂),警惕用VOC换算推测CO₂的伪CO₂机型
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