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答:该系列机的空气过滤器,使用两个月或一个季度便脏了,过滤气体不洁净。这时若不及时更换空气过滤器,湿润塔里的蒸馏
Answer: The air filter of this series machine is dirty after using two months or one quarter, and the filtering gas is not clean. If the air filter is not replaced in time, the distillation in the wet tower