Unverified90% confidenceDecision RuleTime unknown

家用甲醛/TVOC检测优先选电化学传感器，其对甲醛的选择性和精度远高于半导体金属氧化物(MOS)传感器；MOS传感器只能检测'总还原性气体'，会把酒精、香水、油烟都算成TVOC，数值虚高且无法区分

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TVOC检测仪category

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Unverified标注同时检测甲醛/TVOC/PM2.5的低价多合一仪器，往往仅用一个VOC气体传感器换算折算出多个数值，甲醛数据可信度低；单一甲醛专用电化学传感器的准确度通常高于多合一机型83% similar Unverified百元级家用甲醛检测仪多采用电化学传感器的替代品——半导体（MOS）传感器，其读数会将VOC、酒精、氨等干扰气体全部计入'甲醛'数值，导致读数虚高2-5倍，只能看趋势不能看绝对值，选购宠物家庭空气监测应认准电化学传感器机型83% similar

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