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• Yes. You should change it every 5-7 years! Every 6 months is too frequent, and the most optimal timeframe to change it in is every 5-7 years.

  Answered by Cereal 6 months ago

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• yes but just about twice or three times a year. i suggest doing it every time you do a deep clean of the case so doing it every 6 months should be optimal.

  Answered by Anonymous 6 months ago

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