“How long before you would have to replace the filter?”

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• Hello Billie, This is Miella from Dyson. The HP09 Purifier Hot+Cool Formaldehyde filter can last 6-12 months, depending on your usage. Hope this helps! Miella Dyson Customer Support

  Answered by DysonProductExpert 4 years ago

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• Dyson recommends that you replace your air purifier filter every 12 months. Replacement filters cost $69.99 to $79.99, covered by a 1-year warranty.

  Answered by DestinyQueenB 3 years ago

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