“Under standard use, how long will the unit's filter continue to provide adequate filtration before it needs to be replaced?”

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• Hi there, this is Kelly with Dyson. The filter for the Dyson DP04 Pure Cool will have roughly 4382 hours of life. If you use your purifier 12 hours every single day, the filter will last you approximately one year. Best wishes, Kelly Dyson Customer Support

  Answered by DysonProductExpert 5 years ago

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• Mines going strong now over a year and no change! Hope this helps

  Answered by DBray 5 years ago

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