| 摘要 |
The present invention relates to an air cleaning device, comprising a housing formed with an air duct and having an air inlet and an air outlet, so that air containing contaminants can flow through the air duct to the air outlet via the air inlet, and at least one UV lamp disposed in the air duct for destroying at least part of the contaminants in the air that flows through the air duct past said at least one UV lamp, wherein at least one retardation element is provided in the air duct, which prolongs the residence time of air flowing through the air duct near said at least one UV lamp.
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