“We just purchased this model. It makes a buzzing sound after it's been on for a few minutes and it was vibrates slightly. What causes it to do this?”

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• It happens when it detects more "heavy or dirty " particles in the air so it boosts. For example, I usually have it in my bedroom. When I'm straightening my hair (burning) the filter detects that on the air and starts doing it automatically boosting the sucking of more air into the filter, you should see it changing from blue color to green or if there are lots of particles to red color.

  Answered by BiancaC 1 year ago

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• Thank you for reaching out! To help us better understand the noise you’re experiencing and resolve the issue, please contact us using the link below. I apologize for any inconvenience. https://www.blueair.com/us/contact-us-page.html

  Answered by Blueair Support Team 1 year ago

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