Unverified85% confidenceDecision RuleTime unknown
空气净化器除甲醛需配备大剂量改性活性炭/催化滤网且CADR甲醛值≥其房间面积匹配值，普通HEPA净化器只除颗粒物几乎不除甲醛，滤网还需定期更换否则失效
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Unverified空气净化器除甲醛看CADR甲醛值而非颗粒物CADR，甲醛CADR需≥100m³/h才对20㎡房间有意义，且需选可更换的高效除醛滤芯（锰基/改性活性炭），滤芯半年到一年必须换85% similarUnverified除甲醛看CADR(甲醛)数值+CCM(甲醛)等级，认准活性炭克重≥1kg或改性分子筛滤网，仅靠HEPA滤网无法有效除甲醛85% similarUnverified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84% similarUnverified新装修除甲醛不能只靠新风机过滤，甲醛是气态污染物普通HEPA无效，需选带高级别活性炭滤网且强调'持续大换气量'的机型，靠稀释而非过滤，风量比过滤等级更关键84% similarUnverified若主要诉求是去除PM2.5、甲醛、异味，不应只买负离子发生器——负离子对颗粒物只能使其沉降到地面而非清除，应选带HEPA滤网+活性炭的空气净化器（可附带负离子功能）83% similar
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