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What causes the air to flow from the device? Is there a fan inside?

April 26, 2017air causes device fan flow

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What causes the air to flow from the device? Is there a fan inside?

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No, there is not a fan. Air Supply’s negative corona discharge sets up a powerful, electrodynamically driven airflow, drawing pollutants into it and ejecting purified air at a velocity 120 feet per minute for the AS150MM.