“Why are there two colors showing on the lighted air quality indicator at times? We have a Health Protect 7470i.”

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• I don't think their manual explains this at all and can't recall the website that explained it. Half the air quality indicator is for airborne particles. The stuff the unit can clean and remove in it's filters. The OTHER half of the light is for VOC. Volatile Organic Compounds. The unit doesn't appear to 'scrub' those but the light indicates that their is an air quality issue.

  Answered by rtsPirate 3 years ago

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• Hello Sue, what you are referring to is the air quality indicator for PM (left) and VOCs (right). These readings will vary respectively and change throughout the day. You can reference page 16 of your user manual for more information on what the colors indicate.

  Answered by Blueair Support Team 4 years ago

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