CTO压缩活性炭滤芯:用以除去水的余氯、化学农药、异色、异味、并过滤细微杂质等。在纯水机用于第三级当中起到保护RO膜的作用,使用期限为3-6个月。 CTO compressed activated carbon filter: to remove water residual chlorine, chemical pesticides, color, odor, and filter fine impurities and so on. In pure water machine used in third, which plays a role in the protection of RO film, the use of 3-6 months. .