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PP棉滤芯建议3-6个月更换，前置活性炭6-12个月，RO膜24-36个月，后置活性炭12个月；实际寿命受进水TDS和用水量影响，TDS高于300的地区应缩短1/3周期

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UnverifiedPP棉滤芯建议3-6个月更换，活性炭滤芯6-12个月，RO膜寿命标注多为2-3年但实际取决于进水TDS和用水量，额定总净水量到达标称值80%时出水明显变慢即需更换94% similar UnverifiedPP棉滤芯（前置沉淀）建议3-6个月更换，活性炭滤芯6-12个月，RO膜24-36个月，滤芯寿命随进水浊度大幅缩短，不能只看标称周期94% similar UnverifiedPP棉滤芯理论寿命3-6个月，活性炭6-12个月，RO膜24-36个月；但实际寿命随进水TDS和用水量大幅缩短，进水TDS>300或每日用水量大的家庭应按下限提前更换93% similar UnverifiedPP棉滤芯寿命约3-6个月，前置活性炭6-12个月，后置活性炭12-24个月，RO膜24-36个月；实际寿命需按当地TDS和用水量折算，硬水区寿命打对折93% similar UnverifiedPP棉滤芯建议3-6个月更换，活性炭滤芯6-12个月，RO膜24-36个月，超滤膜约24个月；水质差和用水量大需按下限更换，不能只看时间不看水量91% similar

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