Unverified80% confidenceCautionTime unknown
不建议为除甲醛而购买仅带薄型HEPA的机型，甲醛去除依赖活性炭（椰壳炭）克重，滤网活性炭克重＜100g的机型甲醛CADR基本无效
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Unverified新装修除醛需选甲醛CADR≥100且带活性炭+分子筛复合滤网的机型，普通HEPA对甲醛几乎无效，颗粒物CADR高不代表除醛能力强87% similarUnverified无醛/低醛需求家庭不建议为除醛功能溢价购买活性炭大滤芯机型，活性炭滤芯即使不用于除醛也会自然老化失效，纯防雾霾选HEPA主导机型更经济85% similarUnverified不建议将负离子发生器作为除甲醛/除PM2.5主力手段，负离子只能使颗粒物沉降（不消除）且对气态污染物无效，有此需求应买带活性炭+HEPA的真正空气净化器84% similarUnverified仅为除甲醛购买普通颗粒物净化器无意义，颗粒物HEPA滤网无法吸附气态甲醛，必须确认有独立甲醛CADR指标及催化滤网84% similarUnverified不建议只为除甲醛买普通HEPA净化器：HEPA只过滤颗粒物，对气态甲醛几乎无效，必须选带催化分解或大量活性炭的除醛专用机，且甲醛释放持续3~15年不能仅靠净化器根治84% similar
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