Method and device for providing a zone of clean air at an operation area and use of said device
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United States of America Patent
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Nov 29, 2011
Grant Date -
Nov 26, 2009
app pub date -
Feb 26, 2007
filing date -
Feb 28, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to a method and a device for providing a zone (2) of clean air at an operation area (3) wherein an air treatment device (1) having a lighting device (25) is brought to a functional position such that the air treatment device (1) and the lighting device (25) are located above an operation area (3) and between the operation area (3) and a ceiling (32) in the operation premises (4). Air is taken into the air treatment device (1) from upper portions of the operation premises (4) and subsequently filtered in the air treatment device (1). The air is cooled in the air treatment device (1) to achieve a lower temperature than impure air (8) surrounding the zone (2) of clean air and subsequently discharged from the air treatment device (1) as a laminar air flow descending slowly downwards towards the operation area (3).
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