“What is the difference between the Blue Air 411+ and the Blue Air 411 auto?”

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• The 411 Auto has an air quality sensor and will speed up to medium or high when needed and back to low when the air is cleaned.

  Answered by Oktv 3 years ago

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• Building on the original Blue Pure 411 model's functional design and performance efficiency, the 411 Auto features new premium pre-filters, integrated particle sensor, Auto mode setting, and LED air quality display.

  Answered by Jimmy 3 years ago

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