“How many decibels does this unit produce (noise level) when running?”

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• Don’t know but I will say it’s very quiet don’t even know it’s running even the fan is quite.

  Answered by Sammy 4 years ago

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• Hi Cheryl This has to be the quietest system i have purchased I run it in the bedroom at night then when I get ready for bed I turn it down and have it run with the air flow towards the back of the machine I do not wake up stuffy no more Many adjustable air flow modes

  Answered by JUSTmeKiki 4 years ago

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• Hi there Cheryl, this is Tia from Dyson. The sound levels for Dyson PH04 in Fan & Purifier mode is 41.5dBA (min) Level 446.0dBA (max) Level 4 Sound level. In Purifier mode, the sound level is 58.0dBA (min) Level 461.5 (Max) Level 4dBa. Thanks for your support of Dyson technology! Best wishes, Tia Dyson Customer Support

  Answered by DysonProductExpert 4 years ago

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