Unverified90% confidenceCautionTime unknown
活性炭吸附类产品达到饱和后会释放已吸附甲醛造成二次污染，需每15-20天暴晒或更换，长期靠单一活性炭治理甲醛不可行
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90%
Confidence
Long-term
Relevance
-
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Unverified活性炭对甲醛是物理吸附而非分解，通常20-40天内即达饱和，饱和后不清理会缓慢释放已吸附污染物形成二次污染，需定期暴晒或更换92% similarUnverified活性炭本身不分解甲醛只做物理吸附，饱和后（约20-30天）会二次释放，必须定期暴晒或更换，长期不管理反而成为污染源92% similarUnverified活性炭仅具备物理吸附能力而不分解污染物，吸附饱和后（通常20-30天）会释放已吸附的甲醛造成二次污染，必须定期暴晒2-3小时或高温烘烤再生，否则等同于把污染源留在室内91% similarUnverified活性炭吸附是物理过程不分解甲醛，饱和后会二次释放，每500g炭包覆盖约5-8㎡，需每20-30天暴晒再生或更换，长期依赖不适合新装重污染91% similarUnverified活性炭包属于纯吸附型，饱和后（约20-30天）会二次释放甲醛，必须定期暴晒或更换，否则变成污染源；家庭常规用量约每平米20-50g活性炭90% similar
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