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活性炭吸附是物理饱和过程，需每15-20天在阳光下暴晒3-4小时再生，否则2-3个月后会反向释放异味

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Unverified活性炭吸附饱和周期约为3-4周，需定期取出暴晒解吸后复用，否则饱和后会缓慢释放已吸附污染物造成二次污染89% similar Unverified活性炭吸附是物理饱和过程，实际有效吸附期约15-30天，之后需暴晒6-8小时释放已吸附物质才能复用，长期不处理会缓慢释放污染物形成二次污染89% similar Unverified活性炭类除味剂对烟酸、氨类异味吸附能力强，但达到饱和后不处理会二次释放；建议每2-3个月放到阳光下暴晒4小时再生，可循环使用约6-12个月89% similar Unverified活性炭类除味剂吸附饱和后需暴晒再生，单次有效吸附周期约30-45天，超过后需晾晒4-6小时才能恢复约70%活性，反复再生3-4次后应更换88% similar Unverified活性炭包并不能真正分解甲醛，只是物理吸附，一般2-4周即达吸附饱和，需定期暴晒（阳光下2-4小时）解吸再生，否则会二次释放已吸附的污染物85% similar

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